The answer is D but I'm not 100% sure since I don't see the graph
Which two statements best describe Michael’s height while on the two roller coasters?
It switches between negative and positive every 40 seconds. it switches between positive and negative every 80 seconds. So correct statements are B and E.
Describe Algebra?Mathematics' branch of algebra deals with symbols and the formulas used to manipulate them. It is an effective tool for dealing with issues involving mathematical expressions and equations. In algebra, variables—which are typically represented by letters—are used to represent unknowable or variable quantities.
Equations represent mathematical relationships between variables in algebra. An equation is made up of two expressions, one on either side of an equal sign, separated by an equation. Algebraic expressions can involve constants, variables, and mathematical operations such as addition, subtraction, multiplication, and division.
As we can see from the first roller coaster's graph, Michael's height changes from positive to negative after 40 seconds, whereas it was positive for the first 40. It remains negative between 40 and 80 seconds. It continues to be positive from 80 to 120, and so forth.
As a result, every 40 seconds it alternates between negative and positive.
B is accurate.
We can see from the second roller coaster's table that it stays positive from 0 to 80. It continues to be negative from 80 to 160, and so forth.
As a result, every 80 seconds it alternates between positive and negative.
E is accurate.
The complete question is:
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In a restaurant, there are 5 managers, 15 servers, 10 cooks and 15 other personnel. If a person is selected at random, what is the probability that the person is either a manager or a cook?
Answer:
0.33
Step-by-step explanation:
There are a total of 5 + 15 + 10 + 15 = 45 people in the restaurant.
The probability of selecting a manager or a cook is the sum of the probabilities of selecting a manager and selecting a cook, since these events are mutually exclusive (a person cannot be both a manager and a cook at the same time).
The probability of selecting a manager is 5/45, since there are 5 managers out of 45 people in total.
The probability of selecting a cook is 10/45, since there are 10 cooks out of 45 people in total.
Therefore, the probability of selecting either a manager or a cook is:
P(manager or cook) = P(manager) + P(cook)
P(manager or cook) = 5/45 + 10/45
P(manager or cook) = 15/45
P(manager or cook) = 1/3
So, the probability that the person selected at random is either a manager or a cook is 1/3 or approximately 0.333
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Construct the confidence interval for the population variance for the given values. Round your answers to one decimal place.
n=9
, s2=17.3
, and c=0.98
With 98% confidence, we can say that the population variance is between 7.36 and 71.09.
What is probability?
Probability is a branch of mathematics that deals with the study of chance or randomness in events. It is a measure of the likelihood of an event occurring, expressed as a number between 0 and 1, where 0 represents an impossible event and 1 represents a certain event.
To construct the confidence interval for the population variance, we will use the chi-squared distribution.
First, we need to calculate the chi-squared values for the lower and upper bounds of the confidence interval using the following formulas:
χ²_L = (n - 1) * s² / χ²(α/2, n-1)
χ²_U = (n - 1) * s² / χ²(1-α/2, n-1)
where n is the sample size, s² is the sample variance, α is the level of significance, and χ²(α/2, n-1) and χ²(1-α/2, n-1) are the chi-squared values with α/2 and 1-α/2 degrees of freedom, respectively.
Substituting the given values, we get:
χ²_L = (9 - 1) * 17.3 / χ²(0.01, 8) ≈ 3.355
χ²_U = (9 - 1) * 17.3 / χ²(0.99, 8) ≈ 29.587
Next, we can use these chi-squared values to construct the confidence interval for the population variance:
(V_L, V_U) = [(n - 1) * s² / χ²_U, (n - 1) * s² / χ²_L]
Substituting the given values, we get:
(V_L, V_U) = [(9 - 1) * 17.3 / 29.587, (9 - 1) * 17.3 / 3.355]
Simplifying, we get:
(V_L, V_U) ≈ [7.36, 71.09]
Therefore, with 98% confidence, we can say that the population variance is between 7.36 and 71.09.
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Quilt squares are cut on the diagonal to form triangular quilt pieces. The hypotenuse of the resulting triangles is 28 inches long. What is the side length of each piece?
A.14in
B. 14 √2in
C. 14 √3in
D.28 √2in
After cutting the squares, the length of each shorter side (and the side length of each triangular quilt piece) is approximately 14√2 inches i.e. B.
What are squares?
A square is a two-dimensional shape with four straight sides that are of equal length and four right angles (90-degree angles) at the corners. It is a special case of a rectangle, where all four sides are the same length. A square can also be thought of as a special type of rhombus, where the angles are all right angles.
Now,
Since the hypotenuse of each triangle is 28 inches long, we know that this is also the longest side of the right triangle formed by the two shorter sides of the triangle. Let's call one of the shorter sides x.
Using the Pythagorean Theorem, we can find the length of the other shorter side:
c²= a² + b²
28² = x² + x²
784 = 2x²
x² = 392
x = √(392)
x=14√2 in
Therefore, the length of each shorter side (and the side length of each triangular quilt piece) is approximately 14√2 inches (rounded to two decimal places).
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The surface area of a cylinder is given by the formula SA = 2r2 + 2rh. A cylinder has a radius of 12 cm and a surface area of 1,632 cm^2 . Find the height of the cylinder.
A. 52 cm
B. 56 cm
C. 59 cm
D. 34 cm
What is the meaning of "concatenation"?
Answer:
Concatenation means joining number characters from string end to string end.
Step-by-step explanation:
Example:
concatenation of "water" and "bottle" is "waterbottle"
In math 1, 234, 5678 is 12345678
In your word problem the concatenation of "x" and "f" is X=F
Hopefully, this was helpful!! :)
Find the speed a car will travel with a gear ratio of 3.2 with 27 inch diameter tires , 2690 RPM engine.
To find the speed of the car, we need to use the formula:
speed = (RPM * tire diameter * pi * gear ratio) / (336 * 12)
where:
RPM is the engine speed in revolutions per minute
tire diameter is the diameter of the tires in inches
pi is the mathematical constant pi (approximately 3.14)
gear ratio is the ratio of the number of teeth on the driven gear to the number of teeth on the driving gear
336 is a constant representing the number of inches per minute that a car will travel at 1 mile per hour
12 is a constant representing the number of inches in a foot
Plugging in the given values, we get:
speed = (2690 * 27 * 3.14 * 3.2) / (336 * 12)
simplifying the equation, we get:
speed = 63.8 mph (rounded to one decimal place)
Therefore, the car will travel at a speed of approximately 63.8 miles per hour
The box plots below show data from a survey of students under 14 years old. They were asked on how many days in a month they read and draw. Based on the box plots, which is a true statement about students? pg780337 A Most students read less than 12 days a month. B Most students draw at least 12 days a month. C Most students draw more often than they read. D Most students read more often than they draw.
The Correct answer is D) Most students read more often than they draw.as the median of the "read" plot is lower than the median of the "draw" plot.
Based on the box plots, we can see that:
The median for the "read" data is around 8 days per month, and the interquartile range (IQR) is between 4 and 12 days.
The median for the "draw" data is around 12 days per month, and the IQR is between 8 and 16 days.
So, we can conclude that:
A) Most students read less than 12 days a month. This is true, since the median for the "read" data is below 12 days per month, and the box plot shows that most of the data is concentrated in the lower half of the range.
B) Most students draw at least 12 days a month. This is not true, since the median for the "draw" data is around 12 days per month, and the box plot shows that there is a considerable amount of data below that median.
C) Most students draw more often than they read. This is not true, since the median for the "read" data is lower than the median for the "draw" data.
D) Most students read more often than they draw. This is true, since the median for the "read" data is lower than the median for the "draw" data, and the box plot shows that most of the "read" data is concentrated in the lower half of the range, while most of the "draw" data is concentrated in the upper half of the range.
The box plots below show data from a survey of students under 14 years old. They were asked on how many days in a month they read and draw. Based on the box plots, which is a true statement about students? pg780337 A Most students read less than 12 days a month. B Most students draw at least 12 days a month. C Most students draw more often than they read. D Most students read more often than they draw.
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2. Zara stores in the United States stocks a particular type of designer denim jeans in the United States. It stores 500 pairs of jeans each month from its two suppliers. The Hong Kong supplier charges Zara $11 per pair of jeans, and the Colombian supplier charges $16 per pair (and then Zara marks them up almost 1,000%). Although the jeans from Hong Kong are less expensive, they also have more defects than those from Colombia. Based on past data, Zara estimates that 7% of the Hong Kong jeans will be defective compared to only 2% from Colombia and Zara does not want to import any more than 5% defective items. However, Zara does not want to rely on a single supplier, so it wants to order at least 20% from each supplier every month. a. Formulate a linear programming model for this problem. b. Solve the linear programming model graphically. Use either iso-line or corner point method. How many of each should Zara buy? c. How much will Zara pay for them? d. If the Hong Kong supplier were able to reduce its percentage of defective pairs of jeans from 7% to %5, what would be the effect on the solution. Solve c in a separate sheet. First copy the sheet you solved a, b and c. Then change the necessary line and re-solve.
Zara should buy 400 pairs of jeans ordered from Hong Kong and 100 pairs ordered from Colombia for a total cost of $6,000.
See below for other solutions
Formulation of the linear programming model:Let x be the number of pairs of jeans ordered from Hong Kong and y be the number of pairs ordered from Colombia.
Objective function:
Maximize profit, C(x, y) = 11x + 16y
Subject to the following constraints:
The total number of jeans ordered cannot exceed 500: x + y ≤ 500Zara wants to order at least 20% from each supplier: x ≥ 0.2(x+y) and y ≥ 0.2(x+y)Zara does not want to import more than 5% defective items: 0.07x + 0.02y ≤ 0.05(x+y)Non-negativity constraint: x, y > 0Graphical solution using the corner point method:See attachment for the graph, where we have the following corner points
(x, y) = (100, 400), (300, 200), (400, 100)
By substitution, we have
C(100, 400) = 11(100) + 16(400) = 7500
C(300, 200) = 11(300) + 16(200) = 6500
C(400, 100) = 11(400) + 16(100) = 6000
The minimum cost above is $6000
So, Zara should buy 400 pairs of jeans ordered from Hong Kong and 100 pairs ordered from Colombia.
The amount paid for themThe amount paid for them is $6,000
Reducing the percentage of defective pairsIf the Hong Kong supplier were able to reduce its percentage of defective pairs of jeans from 7% to 5%, we would need to update the constraint accordingly:
0.05x + 0.02y ≤ 0.05(x+y)
The new optimal solution would be to order 425 pairs of jeans from the Hong Kong supplier and 75 pairs of jeans from the Colombian supplier, for a total cost of $5875
i.e. C(425, 75) = 11(425) + 16(75) = 5875
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ABCD is a trapezium. P is a point along AC such that AP=4PC. DC=1/4AB.
a) express PB in terms of a and b in its simplest form
b) express DP in terms of a and b in its simplest form
c) does DPB form a straight line?
Answer:
a) We can use similar triangles to find PB in terms of a and b. Let x be the length of AD. Then, using the fact that AP = 4PC, we have:
PC = CP = x - b
AP = 4(x - b)
Also, using the fact that DC = (1/4)AB, we have:
AD = x
AB = 4DC = x/4
BC = AB - AD = x/4 - x = -3x/4
Now, consider the similar triangles PBC and ABD:
PB/AB = BC/AD
PB/(x/4) = (-3x/4)/x
PB = -3/4(x/4) = -3x/16
Finally, substituting x = a + b, we have:
PB = -3(a + b)/16
b) Using the same similar triangles as in part (a), we have:
DP/DC = PB/BC
DP/(1/4)AB = PB/(-3x/4)
DP = -3/4(PB)(DC/BC)AB
DP = -3/4(PB)(1/4)/(AB - AD)AB
Substituting the expressions for PB, AB, and AD from part (a), we get:
DP = -3(a + b)/16 * 1/4 / (-3(a + b)/4) * (a + b)/4
DP = -3/16 * 1/4 * 4/(3(a + b)) * (a + b)
DP = -3/16
So, DP = -3/16(a + b)
c) To check if DPB forms a straight line, we need to verify if the slopes of DP and PB are equal. Using the expressions we found in parts (a) and (b), we have:
Slope of PB = Δy/Δx = (-3/16(a+b) - 0)/(0 - (-3(a+b)/16)) = 3/16
Slope of DP = Δy/Δx = (-3(a+b)/16 - (-3/16(a+b)))/(1/4 - 0) = -3(a+b)/4
Since the slopes are not equal, DPB does not form a straight line.
A store pays $2.50 per pound for cat liter. One cubic foot of cat liter weighs about 48 pounds. What is the selling price of cat liter in the container shown when the markup is 20%?
Answer: The selling price of cat litter in the container shown when the markup is 20% is $3.00 per pound.
Step-by-step explanation:
One cubic foot of cat litter weighs about 48 pounds, so the weight of one pound of cat litter is 1/48 cubic feet.
The store pays $2.50 per pound for cat litter, so the cost of one pound of cat litter is $2.50.
To find the selling price with a 20% markup, we add 20% of the cost to the cost.
20% of $2.50 is $0.50.
So, the selling price per pound is $2.50 + $0.50 = $3.00.
Hope this helps, and have a great day!
A carpenter has a box of nails of various
different lengths. You decide to practice your
weighted averaging skills to figure out the
average length of a nail in the box. You grab
two handfuls of nails and count out the
number of each type of nail. You record your
data in the table below.
Sample
Type
Short nail
Medium nail
Long nall
Number
of Nails
67
18
10
Abundance
(%)
[7]
Nail Length
(cm)
2.5
5.0
7.5
What is the percent abundance of the
medium nails in your sample?
Med Nail % Abund.
Enter
According to the question the percent abundance of the medium nails in the sample is approximately 18.95%.
Explain medium?Whenever the set of data is presented from least to largest, the median is indeed the number in the middle. For instance, since 8 is in the middle, this would represent the median value here.
To find the percent abundance of the medium nails in the sample, we first need to calculate the total number of nails in the sample:
Total number of nails = 67 + 18 + 10 = 95
Next, we can calculate the percent abundance of the medium nails using the formula:
Percent abundance = (number of medium nails / total number of nails) x 100%
Using the values from of the table as inputs, we obtain:
Percent abundance of medium nails = (18 / 95) x 100% ≈ 18.95%
As a result, the sample's average percentage of medium nails is roughly 18.95%.
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Use the simple interest formula to determine the missing value.
P= $1275, R= ?, T= four years, I= $112.20.
R= —-%
Do not round into the final answer, then round to one decimal place as needed
Step-by-step explanation:
2.2 percentage answer you silly
6. This is an example of a O reflection O rotation O translation transformation.
Answer:
translation
Step-by-step explanation:
becuz it can't be rotation as it isn't rotated in any way.
it also cant be reflection as it isnt facing the other way.
so its translation
Solve for X
x^2+ y^2=25 and y=x
The solutions for x are x= +[tex]\sqrt{12.5[/tex] and -[tex]\sqrt{12.5[/tex] which has been obtained by solving the equations given in the question.
Define Equation?
An equation can be defined in numerous ways. An equation is a claim that demonstrates the equivalence of two mathematical expressions, according to algebra.
In the initial equation, we get: by substituting y=x:
[tex]x^2[/tex] +[tex]y^2[/tex]= 25
[tex]x^2[/tex] +[tex]x^2[/tex] = 25 (since y = x)
2[tex]x^2[/tex] = 25
[tex]x^2[/tex] = 12.5
When the two sides are square, we get:
x = ±[tex]\sqrt{12.5[/tex]
Therefore, the solutions for x are x = +[tex]\sqrt{12.5[/tex] and x = -[tex]\sqrt{12.5[/tex]
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Write a real-world problem that could be represented by 5x+ 30 ≥ 90.
Answer: If Jamie is selling bags of carrots for $5 each and already has $30 what would he use to calculate how much money he made.
Gideon took out an R150 000 loan this morning, to buy a house. The interest rate on a mortgage is 7,35%. The loan is to be repaid in equal monthly payments over 20 years. The first payment is due one month from today. How much of the second payment applies to the principal balance? (Assume that each month is equal to 1/12 of a year.)
Answer:
Step-by-step explanation:
To solve this problem, we can use the formula for calculating the fixed monthly payment on a mortgage:
P = (r * PV) / (1 - (1 + r)^(-n))
where:
P = fixed monthly payment
r = monthly interest rate (annual interest rate divided by 12)
PV = present value of the loan (loan amount)
n = total number of payments (number of years multiplied by 12)
Using the given values:
r = 0.0735 / 12 = 0.006125
PV = R150,000
n = 20 x 12 = 240
Then we can calculate the monthly payment:
P = (0.006125 * 150000) / (1 - (1 + 0.006125)^(-240)) = R1,181.91
This means that Gideon will have to pay R1,181.91 every month for 20 years to repay his loan.
To determine how much of the second payment applies to the principal balance, we need to calculate the interest and principal amounts of the first payment.
For the first payment, the interest can be calculated as:
interest1 = r * PV = 0.006125 * 150000 = R918.75
This means that the first payment consists of R918.75 in interest and the rest, R1,181.91 - R918.75 = R263.16 is principal.
To find out how much of the second payment applies to the principal balance, we need to subtract the interest and add the calculated principal amount from the first payment to the amount of the second payment:
principal2 = (P - interest1) + principal1 = (1181.91 - 918.75) + 263.16 = R525.32
Therefore, R525.32 of the second payment applies to the principal balance.
Help with this problem guys
no trolling please i really need it
Answer:
[tex]\textsf{1.}\quad \sf \overline{AZ} = 28 \; meters[/tex]
[tex]\textsf{2.}\quad \sf \overline{AM} = 28 \; meters[/tex]
[tex]\textsf{3.}\quad b = \sf 4[/tex]
[tex]\textsf{4.}\quad \sf Perimeter = 112\; meters[/tex]
[tex]\textsf{5.}\quad \sf \overline{MX} = 22\; meters[/tex]
[tex]\textsf{6.}\quad \sf \overline{AX} = 10\sqrt{3}\; meters[/tex]
[tex]\textsf{7.}\quad \sf \overline{EX} = 10\sqrt{3}\; meters[/tex]
[tex]\textsf{8.}\quad \sf \overline{AE} = 20\sqrt{3}\; meters[/tex]
Step-by-step explanation:
Side lengths and value of bAll sides of a rhombus are the same length. Therefore, for rhombus MAZE:
[tex]\sf \overline{AZ} = \overline{AM} = \overline{ZE} = \overline{EM}[/tex]
Given:
[tex]\overline{\sf AZ} =8b-4[/tex][tex]\overline{\sf AM} =5b+8[/tex]As the sides of a rhombus are the same length, we can equate the expressions for sides AZ and AM, and solve for b:
[tex]\begin{aligned}\overline{\sf AZ}&=\overline{\sf AM}\\8b-4&=5b+8\\8b-4-5b&=5b+8-5b\\3b-4&=8\\3b-4+4&=8+4\\3b&=12\\3b \div 3&=12 \div 3\\b&=4\end{aligned}[/tex]
Therefore, the value of b is 4.
To find the length of AZ and AM, substitute the found value of b into one of the expressions:
[tex]\begin{aligned}\overline{\sf AZ}&=8b-4\\&=8(4)-4\\&=32-4\\&=28\end{aligned}[/tex]
Therefore, as AZ = AM, then AZ = 28 and AM = 28.
[tex]\hrulefill[/tex]
PerimeterAs the sides of a rhombus are equal in length, each side length is 28 meters (as found previously).
The perimeter of rhombus MAZE is the sum of its side lengths. Therefore:
[tex]\begin{aligned}\sf Perimeter\;MAZE&=\sf \overline{AZ} +\overline{AM} +\overline{ZE}+ \overline{EM}\\&=28+28+28+28\\&=112\; \sf meters\end{aligned}[/tex]
Therefore, the perimeter of rhombus MAZE is 112 meters.
[tex]\hrulefill[/tex]
DiagonalsThe point of intersection of the diagonals of rhombus MAZE is point X.
As the diagonals of a rhombus are perpendicular bisectors of each other, then:
[tex]\sf \overline{AX}=\overline{EX}\quad and \quad \overline{AX}+\overline{EX}=\overline{AE}[/tex]
[tex]\sf\overline{MX}=\overline{ZX}\quad and \quad\overline{MX}+\overline{ZX}=\overline{MZ}[/tex]
Given MZ = 44 meters, and MX is half of MZ, then:
[tex]\sf \overline{MX}=\overline{ZX}=22\;meters[/tex]
As the diagonals bisect each other at 90°, m∠MXA= 90°. Therefore, ΔMXA is a right triangle with hypotenuse AM = 28 and leg MX = 22.
As we know the lengths hypotenuse AM and leg MX, we can use Pythagoras Theorem to calculate the length of the other leg, AX:
[tex]\begin{aligned}\sf \overline{AX}^2+\overline{MX}^2&=\sf \overline{AM}^2\\\sf \overline{AX}^2+22^2&=\sf 28^2\\\sf \overline{AX}^2&=\sf 28^2-22^2\\\sf \overline{AX}&=\sqrt{\sf 28^2-22^2}\\\sf \overline{AX}&=\sf 10\sqrt{3}\; meters\end{aligned}[/tex]
As the diagonals bisect each other, AX = EX. Therefore:
[tex]\sf \overline{EX}=\sf 10\sqrt{3}\; meters[/tex]
The length of diagonal AE is the sum of segments AX and EX. Therefore:
[tex]\begin{aligned}\sf \overline{AE}&=\sf \overline{AX}+\overline{EX}\\&=\sf 10\sqrt{3}+10\sqrt{3}\\&=\sf 20\sqrt{3}\; meters\end{aligned}[/tex]
[tex]\hrulefill[/tex]
Note: The attached diagram is drawn to scale.
The average salary for a Queens College full professor is $85,900. If the average salaries is normally distributed with
standard deviation of $11,000, find the percentage of professors that make more than $75,000.
According to the question approximately 83.89% of professors make more than $75,000 calculated by forming the equation.
Explain equation?When the roots and solutions of two equations match, they are said to be equivalent. The same number, symbols, or expression must be added to or subtracted from both the equation's two sides to produce an equivalent equation. By multiplying or dividing both sides of an equation by a nonzero number, we can also obtain an analogous equation.
This issue can be resolved using the conventional normal distribution. First, we need to standardize the value of $75,000 using the formula:
z = (x - μ) / σ
where x is indeed the value we wish to standardise, is indeed the mean, and is the deviation.
z = (75,000 - 85,900) / 11,000
z = -0.99
Next, we look up the area to the right of z = -0.99 in the standard normal distribution table or by using a calculator. The area to the left of z = -0.99 is 0.1611, so the area to the right of z = -0.99 is:
1 - 0.1611 = 0.8389
Therefore, approximately 83.89% of professors make more than $75,000.
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Mastery: 40% Correct answers: 29/72
5351 5799
A store sees 120 customers in 8 hours. What is the unit rate (in customers per hour)?
12 customers per 20 customers per 16 customers per
hour
hour
hour
15 customers per
hour
BAR Mar 10 303 US
Therefore , the solution of the given problem of percentage comes out to be 15 customers per hour make up the unit cost. 15 clients per hour, to be exact.
What precisely is a percentage?A number or statistic that is stated as an amount of 100 is referred to as "a%" in statistics. The forms "pct," "pct," or "pc" are additionally uncommon. The common way to indicate it is with a representation "%," though. The ratio to the total sum is flat, and there are no indicators. Percentages are actually integers because they almost always add up to 100. To suggest that a number indicates a percentage, either the word "fraction" or a representation for percentage (%) must come before the number.
Here,
We must divide the overall number of customers by the number of hours in order to determine the unit rate (in customers per hour).
There are 120 total clients.
There are 8 hours in all.
Unit rate is equal to the sum of all clients times the number of hours.
=> Unit rate: 120 / 8
=> Rate per unit: 15
Consequently, 15 customers per hour make up the unit cost. 15 clients per hour, to be exact.
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there are 3 containers of chocolate ice cream for every 2 containers of vanilla ice cream. What is the constant of proportionality in terms of vanilla to chocolate.
The constant of proportionality for vanilla to chocolate ice cream is 2/3.
Constant of Proportionality for Vanilla to Chocolate Ice CreamThe constant of proportionality represents the fixed relationship between two quantities in a proportional relationship.
In this case, we are given that there are 3 containers of chocolate ice cream for every 2 containers of vanilla ice cream.
To find the constant of proportionality in terms of vanilla to chocolate, we need to express this relationship as a fraction with the same units.
We can start by setting up the ratio of vanilla to chocolate ice cream, which would be 2:3.
This can then be expressed as
2/3
Therefore, the constant of proportionality for vanilla to chocolate ice cream is 2/3.
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The radius of a cylindrical water tank is 4 ft, and its height is 6 ft. What is the volume of the tank?
Use the value 3.14 for it, and round your answer to the nearest whole number.
Be sure to include the correct unit in your answer.
0
4 ft
6 ft
In response to the stated question, we may state that Therefore, the cylinder volume of the tank is approximately 301 cubic feet.
what is cylinder?A cylinder is a three-dimensional polyhedron made up of two congruent parallel circular bases but a curving surface linking the two bases. The bases of a cylinder are all equal to its axis, which is an artificial straight line across the centre of both bases. The volume of a cylinder is the composite of its base area and length. The volume of a cylinder is computed as V = r2h, where "V" represents the volumes, "r" represents the circle of the base, and "h" is the height of the cylinder. The formula to find the volume of a cylinder is:
[tex]V = \pir^2h[/tex]
Where V is the volume, r is the radius, h is the height, and π is a constant value that approximates to 3.14.
[tex]V = 3.14 * 4^2 * 6\\V = 3.14 * 16 * 6\\V = 301.44\\V = 301 ft^3[/tex]
Therefore, the volume of the tank is approximately 301 cubic feet.
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Find the differance quotient of y=4x³-5x
Answer:
12x² + 12xh + 4h² - 5
Step-by-step explanation:
f(x + h) - f(x) / h
= [4(x + h)³ - 5(x + h)] - [4x³ - 5x] / h
= [4x³ + 12x²h + 12xh² + 4h³ - 5x - 5h] - [4x³ - 5x] / h
= 4x³ + 12x²h + 12xh² + 4h³ - 5x - 5h - 4x³ + 5x / h
= 12x²h + 12xh² + 4h³ - 5h / h
= 12x² + 12xh + 4h² - 5
Hope this helps :)
A charity organization has to sell a few tickets to their fundraiser just to cover necessary production costs. After selling 10 tickets they were still at a net loss of $800 (due to the production costs). They sold each tickets for $70.
the organization needs to sell at least 22 tickets to break even.
What is the arithmetic operation?
The four fundamental operations of arithmetic are addition, subtraction, multiplication, and division of two or more quantities. Included in them is the study of numbers, especially the order of operations, which is important for all other areas of mathematics, including algebra, data management, and geometry. The rules of arithmetic operations are required in order to answer the problem.
Let C be the total production cost and n be the number of tickets sold.
From the problem, we know that the organization had a net loss of $800 after selling 10 tickets, so we have:
10(70) - C = -800
Simplifying, we get:
C = 1500
This means that the total production cost was $1500.
The revenue from selling n tickets at $70 per ticket is given by:
R = 70n
Substituting the values of R and C, we get:
70n = 1500
Solving for n, we get:
n = 1500/70 = 21.43
Since we can't sell a fraction of a ticket, we need to round up to the nearest whole number.
Therefore, the organization needs to sell at least 22 tickets to break even.
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6. Atwo-story building measures 21 feet from the ground. A scale model shows the building to be 3 inches tall. How many inches would an 84-foot building be in the model?
Answer:
84 feet is equal to 1008 inches. So, the 84-foot building would be 1008 inches divided by 21 feet, which is 48 inches tall in the model.
The list below represents the number of novels written
by each of Amir's 10 favorite authors.
1 3 3 4 5 7 8 10 12 23
What is the interquartile range of the number of novels
written by each of Amir's 10 favorite authors?
The interquartile range of the number of novels written by each of Amir's 10 favorite authors is 6.
What is the interquartile range ?
In statistics, the interquartile range (IQR) is a measure of variability, based on dividing a data set into quartiles. Quartiles divide the data set into four equal parts, with the interquartile range being the difference between the upper (third) and lower (first) quartiles. The IQR represents the middle 50% of the data, and is used as a measure of spread or dispersion in a data set, particularly when the data set contains outliers.
To find the interquartile range (IQR), we need to first find the first quartile (Q1) and the third quartile (Q3).
To find Q1:
Arrange the data in order from smallest to largest: 1 3 3 4 5 7 8 10 12 23
Find the median of the lower half of the data (the first five numbers): (3+3)/2 = 3
This is the first quartile (Q1)
To find Q3:
Arrange the data in order from smallest to largest: 1 3 3 4 5 7 8 10 12 23
Find the median of the upper half of the data (the last five numbers): (8+10)/2 = 9
This is the third quartile (Q3)
Now we can calculate the IQR:
IQR = Q3 - Q1 = 9 - 3 = 6
Therefore, the interquartile range of the number of novels written by each of Amir's 10 favorite authors is 6.
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What is the most appropriate measure of center for the data set? A line plot showing number of siblings for seventh graders. There are 2 dots above zero, four dots above one, two dots above two, two dots above three, no dots above 4, 5, 6, or 7, one dot above eight, and no dots above 9. Savass easybridge btw 30 pts
Median is most appropriate since it is not affected by outliers or extreme values, and gives a more representative estimate of the typical number of siblings for seventh graders. Mode can also be considered since it represents the most frequent value, but it may not be as representative as the median in this case.
What is mean?
In statistics, the mean is a measure of central tendency that is calculated by adding up all the values in a dataset and dividing by the total number of values.
It is commonly referred to as the "average." The mean is often used as a summary statistic to describe the typical value in a dataset. It is sensitive to outliers, meaning that extreme values can significantly influence the value of the mean. The mean is also widely used in hypothesis testing and statistical inference.
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Find the Perimeter of the given figure. Remember that this is a composite figure. Be sure to show your work or explain how you found your answer in question
Answer:
Start off with the 20ft sides
20x2 =40ft
40ft + 8ft = 48ft
Now we need to find the perimeter of the half circle.
Since we know the diameter of the half circle is 8ft, we can use the following formula: Diameter x Pi = Circumference
Plug in:
8ft x 3.14159 = 25.132ft
25.132 /2 gives us the perimeter of the half circle
25.132 / 2 = 12.566
Rounded = 12.57 ft
48 ft + 12.57 ft = 60.57 feet perimeter.
The perimeter of the given solution is 76.56 feet.
We need to find the perimeter of the figure by splitting the figure into a rectangle and a semi-circle. The radius for the semi-circle is found by dividing the diameter by 2, Radius = 8 ÷ 2 = 4.
Therefore, the formula for finding the Perimeter of the given rectangle is
P = 2( l+b )
P = 2( 20 + 8)
P = 56 feet.
now, the formula for the circumference of a semi-circle is
C = [tex]\pi[/tex]r + 2r
C = 3.14( 4) + 2 (4)
C = 20.56 feet.
Therefore, the perimeter of the given figure is
The perimeter of the rectangle + circumference of the Semi-circle
= 56 + 20.56
= 76.56 feet
Therefore, the perimeter of the given solution is 76.56 feet.
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A dilation centered at the origin maps the point (4,6) to the point (5/2,15/4). What is the scale factor of the dilation
We may be confident that this is the correct scale factor because both equation equations yield the same value of k. As a result, the dilatation has a scale factor of 5/8 and is centered at the origin.
What is equation?An equation is a statement in mathematics that states the equality of two expressions. An equation has two sides that are separated by an algebraic equation (=). For example, the argument "2x + 3 = 9" asserts that the phrase "2x + 3" equals the value "9". The purpose of equation solving is to determine which variable(s) must be changed in order for the equation to be true. Simple or complex equations, regular or nonlinear equations, and equations with one or more elements are all possible. In the equation "x2 + 2x - 3 = 0," for example, the variable x is raised to the second power. Lines are employed in a variety of mathematical disciplines, including algebra, calculus, and geometry.
Let (x,y) be a point on the plane and k be the dilation scale factor centred at the origin. The image of (x,y) under dilation is thus given by (kx, ky).
The dilation is given as (4,6) to (5/2,15/4). That is to say:
[tex]k(4) = 5/2 \sk(6) = 15/4\\k = 5/8 \sk = 5/8[/tex]
We may be confident that this is the correct scale factor because both equations yield the same value of k. As a result, the dilatation has a scale factor of 5/8 and is centered at the origin.
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Pls help thanks!!!!!!!!!!!!!!!!!!!
Answer:
x = 20.4
Step-by-step explanation:
cos(32) = adjacent/ hypotenuse
24 cos (32) = x
x = 20.4