Answers
Answer:
Using the Pythagorean theorem, we know that in a right-angle triangle, we have:
a^2 + b^2 = c^2
where c is the hypotenuse.
From the given information, we have:
ab = 11 - x
a = x
b = 11
c = 11 (given)
We can use the given values to eliminate a or b from the Pythagorean theorem:
a^2 + (11 - x)^2 = 11^2
Expanding and simplifying, we get:
a^2 + 121 - 22x + x^2 = 121
a^2 + x^2 - 22x = 0
Substituting a = x into the above equation, we get:
x^2 + x^2 - 22x = 0
2x^2 - 22x = 0
2x(x - 11) = 0
So, either x = 0 or x - 11 = 0.
Since x cannot be zero (as it represents a length), we have x - 11 = 0.
Therefore, x = 11.
Hence, the value of x in its simplest form with a rational denominator is 11/1 or just 11.
Answer:
[tex]x=11\sqrt{2}[/tex]
Step-by-step explanation:
The given right triangle is an isosceles right triangle since its legs are equal in length (denoted by the tick marks).
Side x is the hypotenuse of the isosceles right triangle.
Given both legs are 11 units in length, we can use Pythagoras Theorem to calculate the length of the hypotenuse.
[tex]\boxed{\begin{minipage}{9 cm}\underline{Pythagoras Theorem} \\\\$a^2+b^2=c^2$\\\\where:\\ \phantom{ww}$\bullet$ $a$ and $b$ are the legs of the right triangle. \\ \phantom{ww}$\bullet$ $c$ is the hypotenuse (longest side) of the right triangle.\\\end{minipage}}[/tex]
As a and b are the legs, and c is the hypotenuse, substitute the following values into the formula and solve for x:
a = 11b = 11c = xTherefore:
[tex]\implies 11^2+11^2=x^2[/tex]
[tex]\implies 121+121=x^2[/tex]
[tex]\implies 242=x^2[/tex]
[tex]\implies x^2=242[/tex]
[tex]\implies \sqrt{x^2}=\sqrt{242}[/tex]
[tex]\implies x=\sqrt{242}[/tex]
To simplify the radical, rewrite it as a product of prime numbers:
[tex]\implies x=\sqrt{11^2 \cdot 2}[/tex]
[tex]\textsf{Apply the radical rule:} \quad \sqrt{ab}=\sqrt{a}\sqrt{b}[/tex]
[tex]\implies x=\sqrt{11^2}{\sqrt{2}[/tex]
[tex]\textsf{Apply the radical rule:} \quad \sqrt{a^2}=a, \quad a \geq 0[/tex]
[tex]\implies x=11\sqrt{2}[/tex]
Therefore, the length of side x in simplest radical form is 11√2.
Related Questions
Determine any data values that are missing from the table, assuming that the data represent a linear function. x y -9 3 -6 2 -3 0 a. Missing x:-2 Missing y:0 c. Missing x:-2 Missing y:2 b. Missing x:0 Missing y:1 d. Missing x:-1 Missing y:1 Please select the best answer from the choices provided
Answers
We can use the formula for the equation of a line to determine any missing values. The formula is:
�
=
�
�
+
�
y=mx+b
where $m$ is the slope of the line and $b$ is the y-intercept.
We can use the given data points to calculate the slope of the line:
�
=
change in y
change in x
=
�
2
−
�
1
�
2
−
�
1
m=
change in x
change in y
=
x
2
−x
1
y
2
−y
1
where $(x_1, y_1)$ and $(x_2, y_2)$ are any two points on the line. Let's use the points $(-9, 3)$ and $(-6, 2)$:
\begin{align*}
m &= \frac{y_2 - y_1}{x_2 - x_1} \
&= \frac{2 - 3}{-6 - (-9)} \
&= \frac{-1}{3}
\end{align*}
Now we can use the slope-intercept form of the equation of a line to determine any missing values. Let's go through each option:
a. Missing $x:-2$, Missing $y:0$
We can use the formula $y = mx + b$ with $m = -\frac{1}{3}$ and $b = 3$ (substitute the coordinates of the point $(-9, 3)$) to find the y-value when $x = -2$:
\begin{align*}
y &= mx + b \
&= -\frac{1}{3} \cdot (-2) + 3 \
&= \frac{7}{3}
\end{align*}
So the missing value of $y$ when $x = -2$ is $\boxed{\frac{7}{3}}$.
b. Missing $x:0$, Missing $y:1$
We can use the formula $y = mx + b$ with $m = -\frac{1}{3}$ and $b = 3$ (substitute the coordinates of the point $(-9, 3)$) to find the y-intercept:
\begin{align*}
y &= mx + b \
3 &= -\frac{1}{3} \cdot (-9) + b \
3 &= 3 + b \
b &= 0
\end{align*}
So the y-intercept is $0$. Now we can substitute $b = 0$ and $m = -\frac{1}{3}$ into the formula $y = mx + b$ to find the y-value when $x = 0$:
\begin{align*}
y &= mx + b \
&= -\frac{1}{3} \cdot 0 + 0 \
&= 0
\end{align*}
So the missing value of $y$ when $x = 0$ is $\boxed{0}$.
c. Missing $x:-2$, Missing $y:2$
We can use the formula $y = mx + b$ with $m = -\frac{1}{3}$ and $b = 3$ (substitute the coordinates of the point $(-9, 3)$) to find the y-value when $x = -2$:
\begin{align*}
y &= mx + b \
&= -\frac{1}{3} \cdot (-2) + 3 \
&= \frac{7}{3}
\end{align*}
So the missing value of $y$ when $x = -2$ is $\boxed{\frac{7
In which survey was a parameter reported? Select two answers.
Answers
Answer: would be great if you could give the options of the questions?
hello!please help!then done!:)
Answers
The answer should be 2.The lower quartile of the number of absence is 2
0 is the lowest number and then 2 would be lower quartile, The 4 would be the Median or the middle of all the data 7 is the upper quartile and 10 would be the highest number of absences.
The lower quartile, also known as the first quartile, is a measure of central tendency that divides a dataset into four equal parts. It represents the point at which 25% of the data values fall below and 75% of the data values fall above. In other words, the lower quartile marks the boundary between the lowest 25% and the upper 75% of the data. It is often used in statistics to help summarize and analyze datasets, and can be helpful in identifying outliers or unusual values in the lower end of a dataset.
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4(1 +6p)
U need to simplify the expressions what would be the answer
Answers
I need help can someone help thxxxx
Answers
Answer:
I hope this helps :)
Step-by-step explanation:
its the correct answer
Find the value of each variable and round to the nearest tenth. Can anyone help me pls????
Answers
Answer:
9) x = 12 cm
10) x = 10.4 ft (Rounded)
11) y = 39.7 in (Rounded)
Step-by-step explanation:
Just use Pythagorean theorem
Answer and Explanation:
We can solve for x in these questions using the Pythagorean Theorem:
a² + b² = c²,
where a and b are the legs (shorter sides) of a right triangle, and c is its hypotenuse (longest side).
Applying this theorem to the problems at hand:
9. We are using (10 / 2) as one of the legs.
(10 / 2)² + x² = 13²
↓ simplifying division
5² + x² = 13²
↓ subtracting 5² from both sides
x² = 13² - 5²
↓ simplifying the right side
x² = 169 - 25
x² = 144
↓ taking the square root of both sides
x = 12
10.
6² + x² = 12²
↓ subtracting 6² from both sides
x² = 12² - 6²
↓ simplifying the right side
x² = 144 - 36
x² = 108
↓ taking the square root of both sides
x = [tex]\sqrt{108}[/tex]
↓ simplifying the square root
[tex]\sqrt{108} = \sqrt{3 \cdot 3 \cdot 3 \cdot 2 \cdot 2} = (3\cdot 2)\sqrt{3} = 6\sqrt3[/tex]
x = 6[tex]\sqrt3[/tex]
11.
24² + 33² = y²
↓ simplifying the right side
576 + 1089 = y²
1665 = y²
↓ taking the square root of both sides
y = [tex]\sqrt{1665}[/tex]
↓ simplifying the square root
[tex]\sqrt{1665} = \sqrt{3 \cdot 3 \cdot 5 \cdot 37} = 3\sqrt{5 \cdot 37} = 3\sqrt{185}[/tex]
y = 3[tex]\sqrt{185}[/tex]
so what do i do when is multiply a improper and a proper fraction
Answers
Answer:
Multiply the numerators first together then multiply the denominators together.
Step-by-step explanation:
example 1/2(4/2) =4/4 = 1
Curious about people's recycling behaviors, Sandra put on some gloves and sifted through some recycling and trash bins. She kept count of the plastic type of each bottle and which bottles are properly dispensed.
What is the probability that a randomly selected bottle is correctly placed AND is a Plastic #4 bottle?
show all steps
Answers
The probability that a randomly selected bottle is correctly placed AND is a Plastic #4 bottle is: P(Correctly placed and Plastic #4) = 15/100 = 0.15 is 15% chance.
What is probability?
To find the probability that a randomly selected bottle is correctly placed AND is a Plastic #4 bottle, we need to divide the number of bottles that meet both conditions by the total number of bottles.
Let's say Sandra examined 100 bottles, and 60 of them were properly placed, and 25 of them were Plastic #4 bottles, and 15 of those Plastic #4 bottles were also properly placed.
Then, the number of bottles that meet both conditions is 15, and the total number of bottles is 100. Therefore, the probability that a randomly selected bottle is correctly placed AND is a Plastic #4 bottle is:
P(Correctly placed and Plastic #4) = 15/100 = 0.15
So, there is a 15% chance that a randomly selected bottle is both correctly placed and a Plastic #4 bottle.
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Complete question is: Curious about people's recycling behaviors, Sandra put on some gloves and sifted through some recycling and trash bins. She kept count of the plastic type of each bottle and which bottles are properly dispensed. The probability that a randomly selected bottle is correctly placed AND is a Plastic #4 bottle is: P(Correctly placed and Plastic #4) = 15/100 = 0.15 is 15% chance.
PLEASE. HELP. ME.
Find the measure of the missing angles.
Answers
Answer:
∠h = 61°
∠g = 119°
∠m = 59°
∠k = 121°
Step-by-step explanation:
According to the Vertical Angles Theorem, when two straight lines intersect, the opposite vertical angles are congruent.
Therefore, as angle g is opposite 119°:
⇒ ∠g = 119°
As angle k is opposite 121°:
⇒ ∠k = 121°
Angles on a straight line sum to 180°.
As angle h and 119° form a straight line:
⇒ ∠h + 119° = 180°
⇒ ∠h + 119° - 119° = 180° - 119°
⇒ ∠h = 61°
As angle m and 121° form a straight line:
⇒ ∠m + 121° = 180°
⇒ ∠m + 121° - 121° = 180° - 121°
⇒ ∠m = 59°
Answer:
see belowStep-by-step explanation:
To find:-
The values of m , k , g and h .Answer:-
From the given figure we can see that angles k and 121° are vertically opposite angles . Also we know that vertically opposite angles are equal to each other. Hence here we can say that,
[tex]\longrightarrow \boxed{ k = 121^o}\\[/tex]
Secondly, we know the the mesure of angle of a straight line is 180° . So the sum of angles on a straight line would be 180° . If two angles are present we call them linear pair . Hence here , we can see that m and 121° are linear pairs.
So that,
[tex]\longrightarrow m + 121^o = 180^o \\[/tex]
[tex]\longrightarrow m = 180^o-121^o\\[/tex]
[tex]\longrightarrow \boxed{m = 59^o } \\[/tex]
Similarly we can see that g and 119° are vertically opposite angles. Again they will be equal. So ,
[tex]\longrightarrow \boxed{g = 119^o} \\[/tex]
Again, 119° and h form linear pair.So their sum would be 180° .
[tex]\longrightarrow h + 119^o = 180^o \\[/tex]
[tex]\longrightarrow h = 180^o - 119^o\\[/tex]
[tex]\longrightarrow \boxed{ h = 61^o }\\[/tex]
These are the required values of the unknown angles.
Fill in table using this function rule y= -4x - 2. I'm confused on on the table of function on what they y is when x is -10
Answers
When x is -10, the value of y is 38. This means that the point (-10, 38) is on the graph of the function y = -4x - 2.
We must determine the values of x and solve for the matching value of y in order to fill in the table using the function rule y = -4x - 2. The table can then be populated with the resulting values for x and y.
An illustration table with x values ranging from -3 to 3 is shown below:
x y
-3 10
-2 6
-1 2
0 -2
1 -6
2 -10
3 -14
We may easily change x in the function rule y = -4x - 2 to -10 to find the value of y when x is -10:
y = -4(-10) (-10) - 2 \sy = 40 - 2 \sy = 38
As a result, y equals 38 when x is -10. This indicates that the point (-10, 38) is located on the y = -4x - 2 function graph.
It's vital to remember that the numbers in the table are produced by inserting various x values into the function rule, and the resulting y-values represent the corresponding locations on the function's graph. The line passing through the point on the graph of the function y = -4x - 2 has a slope of -4 and a y-intercept of -2. (-10, 38).
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A rectangle is drawn so the width is 7 inches longer than the height . If the rectangle’s diagonal measurement is 34 inches, find the height
Answers
Answer:
To solve this problem, we can use the Pythagorean theorem, which relates the sides of a right triangle. Let's call the height "h" and the width "w". Then we have: w = h + 7 (since the width is 7 inches longer than the height) We also know that the diagonal measurement is 34 inches, so we can use the Pythagorean theorem to relate the height, width, and diagonal: h^2 + w^2 = d^2 Substituting the values we have: h^2 + (h+7)^2 = 34^2 Expanding and simplifying: 2h^2 + 14h - 795 = 0 Now we can solve for h using the quadratic formula: h = (-14 ± sqrt(14^2 - 4(2)(-795))) / (
Eleni rents a car on two separate occasions. The first time she pays $180 for 3 days and 150km
Answers
The average cost per day is $90 and the average cost per km is $0.655.
To calculate the average cost per day, we need to first calculate the total cost of renting the car for both occasions and divide it by the total number of days.
The total cost of renting the car for both occasions is $180 + $180 = $360. The total number of days is 4 (2 days for each occasion).
Therefore, the average cost per day is $360 ÷ 4 = $90.
To calculate the average cost per km, we need to first calculate the total cost of renting the car for both occasions and divide it by the total number of kilometers driven.
The total cost of renting the car for both occasions is $180 + $180 = $360. The total number of kilometers driven is 550km (150km for the first occasion + 400km for the second occasion).
Therefore, the average cost per km is $360 ÷ 550km ≈ $0.655.
Correct question is " Eleni rents a car on two separate occasions. The first time, she paid $180 for 2 days and 150km. The next time, she paid $180 for 2 days and 400km. What is the average cost per day? What is the average cost per km?"
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Aldrin bought 5 pencils and 7 notebooks. A notebook cost 10. 80 more than a pencil write an algebraic equation showing that the total amount of the school supplies bought is210. 00
Answers
Answer:
5x + 7(x + 10.80) = 210.00
Step-by-step explanation:
Let x be the cost of a pencil in dollars. Then, the cost of a notebook is 10.80 dollars more, which is x + 10.80 dollars.
Aldrin bought 5 pencils and 7 notebooks, so the total cost is:
5x + 7(x + 10.80) = 210.00
Simplifying and solving for x, we have:
5x + 7x + 75.60 = 210.00
12x = 134.40
x = 11.20
Therefore, a pencil costs 11.20 dollars and a notebook costs 10.80 dollars more, which is 22.00 dollars.
We can check that the total cost of 5 pencils and 7 notebooks at these prices is indeed 210.00 dollars:
5 pencils * 11.20 dollars/pencil + 7 notebooks * 22.00 dollars/notebook = 56.00 dollars + 154.00 dollars = 210.00 dollars
What is the value of x?
4.
A 20
B 25
C 70°
D 90
280°
4x
Answers
Answer:
70°
Step-by-step explanation:
280°÷4x
what is x?
x=70°
Find the 5th term of the arithmetic sequence 4x+4, -x+10, -6x+16...
Answers
Answer:
-16x+28
Step-by-step explanation:
Using the 2nd and 1st term in the sequence, we can find the change.
4x+4, -x+10. Using mental math, we can see that x decreases by 5 and 4 increases by 6. Using this, the change is -5x + 6.
The easiest way to solve this is mental math because the 5th term is very close to the last term (the 3rd).
Solving:
-6x+16 = 3rd term, so -6x+16-5x+6 = -11x+22 | -11x+22-5x+6 = -16x+28.
The side of a square floor tile is measured to be 12 inches, with a possible error of 1/32 inch. Use differentials to approximate the possible propagated error in computing the
area of the square.
±
in²
Answers
Answer:
Step-by-step explanation:
r=12 in
dr=±32
A=πr²
dA=2 πr×dr=2π×12×1/32=3π/4
Possible error in computing the area=3π/4 ~square~inches.
Let A ={1, 2, 3, 4, 5}, and let R be the relation on A given by
R= {(x, y): x y and x is prime)
i. List the elements of R
ii. Give matrix representation of R
iii. Give di-graph of R.
iv. Check whether R is reflexive, symmetric, transitive, equivalence, anti-symmetric,
asymmetric and irreflexive with reasons.
Answers
Asymmetric: Since, for instance, (2,3) is in R but (3,2) is not, R is not asymmetric. No element in A is connected to itself under R, making R irreflexive.
describe range.The collection of output values that such a function of relation can produce is referred to as the range in mathematics. It is the distinction between the largest or smallest values within an ensemble of data or a collection of all conceivable function or relation output values.
In other terms, it is the range of possible values for a variable. For instance, the range is 21 - 3 = 18 if the integers are 3, 7, 12, 15, and 21. The set of all value of y which may be produced by a function f(x) for the given subject area of x values is known as the range.
given
We will now examine the many characteristics of the relation R:
As no element in A is connected to itself under R, R is not reflexive. For instance, R does not support (2,2).
R is not symmetric since, for instance, (3,2) is not in R yet (2,3) is.
R is transitive because, for instance, the existence of (2,3) and (3,5) in R entails the existence of (2,5) in R.
Equivalence: As R is not reflexive or symmetric, it is not an equivalence relation.
Asymmetric: Since, for instance, (2,3) is in R but (3,2) is not, R is not asymmetric. No element in A is connected to itself under R, making R irreflexive.
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Please see the attachment
Answers
a) The temperature decreases at a rate of -4°C per km.
b) The temperature is 0°C at a height of 8km
At what rate does the temperature changes?Here we can see the graph of a relation between the height and the temperature.
We can see that the line goes downwards from left to right, this means that as the height increases, the temperature decreases.
Notice that the horizontal squares represent 1km, while the vertical ones represent 4°C, then, the temperature is decreasing at a rate of -4°C per kilometer, your answer is correct here.
At which height is the temperature zero?
the temperature is zero at the horizontal axis, we can see that the line meets the horizontal axis at a height of 8 km, so that is the answer here.
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A rectangular prism has a base area of 54 m square, and a volume of 702 m. What is its height?
Answers
Answer:
Therefore, the height of the rectangular prism is approximately 13 meters.
Step-by-step explanation:
Let's call the height of the rectangular prism "h". We know that the base area is 54 m², which means that the product of the length "l" and the width "w" is 54. In other words:
l × w = 54
We also know that the volume of the rectangular prism is 702 m³, which means:
l × w × h = 702
We can use the first equation to solve for one of the variables, for example:
w = 54 / l
Substituting this expression for "w" into the second equation, we get:
l × (54 / l) × h = 702
Simplifying and canceling the "l" terms, we get:
54h = 702
Dividing both sides by 54, we get:
h = 702 / 54
Simplifying this expression, we get:
h ≈ 13
Therefore, the height of the rectangular prism is approximately 13 meters.
please helppppppppppppppppppppp
Answers
Answer:
AB = 14 units
BC = 11 units
CD = 14 units
AD = 11 units
Step-by-step explanation:
d=√((x2-x1)²+(y2-y1)²)
AB= (-7,6)-(7,6) √((7+7)²+(6-6)²)=√((14)²+(0)²)=√(196+0)=√(196)=14
BC= (7,6)-(7,-5) √((7-7)²+(-5-6)²)=√((0)²+(-11)²)=√(0+121)=√(121)=11
CD= (7,-5)-(-7,-5) √((-7-7)²+(-5+5)²)=√((-14)²+(0)²)=√(196+0)=√(196)=14
AD= (-7,-5,)-(-7,6) √((-7+7)²+(6+5)²)=√((0)²+(11)²)=√(0+121)=√(121)=11
RQPS is rotated 180° clockwise about the origin.
10
9
8
7
6
5
R
S
P
1 2 3 4 5 6 7 8 9 10
What are the coordinates of P'?
OA. (-7,2)
B. (-2,-7)
O, C. (-7,-2)
D. (7,-2)
Answers
Step-by-step explanation:
The answer is (-2, -7)
Before rotated, the coordinates of P is (7,2)
Imagine if P is rotated 360° clockwise, it will come back to the initial place (7,2).
Now it is just rotated 180° clockwise, halfway of 360° clockwise. So the coordinates should be(-7,-2) after rotated 180° clockwise.
1. In a city where the sales tax rate is 12%, how much sales
tax will be charged on a purchase of $30.00?
A. $0.12
B. $0.25
C. $0.36
D. $1.20
E. $3.60
Answers
Answer: $3.60
Step-by-step explanation: $30(Item Purchased)x0.12(Sales Tax)=$3.60(Sales Tax Rate for a 12% Sales Tax State.)
How do I do part 2 and 3?? Please show all steps of working. I have no clue how to do this!
Answers
The vector b is [10, 5, 10] and the general solution for [A|b] is [1, 5, -3] + [-3, 2, -1]s
Calculating the vector bTo find the vector b, we need to multiply the matrix A by the vector x and solve for b in the equation Ax = b.
So, we have:
[tex]\left[\begin{array}{ccc}1&3&-3&0&1&-2&3&5&-1\end{array}\right]\left[\begin{array}{c}1&1&-2\end{array}\right] &= \left[\begin{array}{c}10&5&10\end{array}\right][/tex]
Therefore, the vector b is [10, 5, 10].
Calculating the general solution for [A|b]To find the general solution of [A | b], we need to perform row reduction on the augmented matrix [A | b] and express the pivot variables in terms of the free variables.
[tex]\left[\begin{array}{ccc|c}1&3&-3&10&0&1&-2&5&3&5&-1&10\end{array}\right] &\rightarrow \left[\begin{array}{ccc|c}1&0&3&1&0&1&-2&5&0&0&0&0\end{array}\right][/tex]
The third column does not have a pivot variable, so we can express x3 in terms of the free variables.
Let s be the free variable, then we have:
x3 = -s - 3
We can now express the pivot variables in terms of s:
x1 = 1 - 3s
x2 = 5 + 2s
Thus, the general solution of [A | b] is:
[tex]\left[\begin{array}{c}x_1&x_2&x_3\end{array}\right] &= \left[\begin{array}{c}1 - 3s&5 + 2s&-s - 3\end{array}\right] \&= \left[\begin{array}{c}1&5&-3\end{array}\right] + s\left[\begin{array}{c}-3&2&-1\end{array}\right][/tex]
Therefore, the general solution of [A | b] is [1, 5, -3] + [-3, 2, -1]s
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3) Dados los siguientes 35 números:
2,2,2,2,2,4,4,4, 4, 6, 6,6, 6, 6, 4, 4, 4, 4, 8, 8, 8, 6, 6, 6, 6, 6, 10, 10, 10, 8, 8, 8, 10, 10 y 10
3.1) Calcule la mediana con la lista de los datos.
3.2) Calcule la media y mediana realizando una tabla de frecuencias.
Answers
Answer:
3.1) Para calcular la mediana de la lista de datos, primero debemos ordenarlos de menor a mayor:
2, 2, 2, 2, 2, 4, 4, 4, 4, 4, 4, 4, 6, 6, 6, 6, 6, 6, 6, 6, 8, 8, 8, 8, 8, 10, 10, 10, 10, 10, 10
Como la lista tiene un número impar de elementos (35), la mediana es el valor central de la lista, es decir, el elemento en la posición 18. En este caso, el valor de la mediana es 6.
3.2) Para calcular la media y la mediana mediante una tabla de frecuencias, primero debemos determinar las frecuencias de cada valor en la lista:
Valor Frecuencia
2 5
4 8
6 9
8 5
10 8
La media se calcula sumando todos los valores y dividiendo entre el número total de elementos:
media = (25 + 48 + 69 + 85 + 10*8) / 35 = 5.8
Para calcular la mediana, primero debemos determinar el valor que ocupa la posición central de la lista. Como el número total de elementos es impar, ese valor es el que ocupa la posición (n+1)/2, donde n es el número total de elementos. En este caso, ese valor es el que ocupa la posición (35+1)/2 = 18.
Luego, debemos encontrar el valor que ocupa la posición 18 contando los valores de la tabla de frecuencias. Podemos hacer esto sumando las frecuencias hasta alcanzar o superar la posición 18:
Valor Frecuencia Frec. Acumulada
2 5 5
4 8 13
6 9 22
8 5 27
10 8 35
Como la posición 18 está dentro del intervalo correspondiente al valor 6, la mediana es 6.
Triangle PQR is drawn with coordinates P(0,2), Q(0, 5), R(1, 4). Determine the translation direction and number of units if R'(-7, 4)
A. 8 units down
B. 8 units up
C. 8 units to the right
D. 8 units to the left
Answers
the correct answer is (D) 8 units to the left. To find the translation direction and number of units, we need to find the vector that takes us from point R to point R'.
Vector RR' can be found by subtracting the coordinates of R from the coordinates of R':
RR' = R' - R = (-7, 4) - (1, 4) = (-8, 0)
This means that the translation moves 8 units to the left, since the x-coordinate of the vector is negative.
To determine the translation direction and number of units required to move R to R', we need to first find the distance between the x-coordinates of R and R'. We can do this by subtracting the x-coordinate of R from the x-coordinate of R': -7 - 1 = -8.
This tells us that we need to move R' 8 units to the left to get to R. However, the question is asking for the translation required to move R to R', not the other way around. Therefore, we need to reverse the direction and say that we need to move R 8 units to the right to get to R'.
We can confirm this by checking the y-coordinates of R and R'. We see that they are both 4, which means there is no vertical translation required. Therefore, the answer is C. 8 units to the right.
Therefore , the correct answer is (D) 8 units to the left.
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Can anyone help? Look at image below
Answers
Linear Scale Factor:
1) Enlargement. Scale Factor = 18/6 = 3
2) Reduction. Scale factor = 6/12 = 1/2
: Find the ordered pair solutions for the system of equations. please help
Answers
Answer:
(-1, 2) and (4, -8)
Step-by-step explanation:
You want the ordered pairs (x, f(x)) that satisfy both equations ...
f(x) = x² -5x -4f(x) = -2xSolutionEquating the two expressions for f(x), we have ...
x² -5x -4 = -2x
x² -3x -4 = 0
(x -4)(x +1) = 0
x = 4 or -1
Corresponding values of f(x) are ...
f(x) = -2{4, -1} = {-8, 2}
Ordered pair solutions are ...
(x, f(x)) = (-1, 2) and (4, -8)
When do we write in2 in or in3
Answers
Answer:
Use in² for area; use in³ for volume.
Explanation:
When you calculate the area of a rectangle, you multiply length times width. Both units are in inches so:
inches × inches = (inches)² or in²
When you calculate the volume of a box (rectangular prism), you multiply length by width by height. All three units are in inches so:
inches × inches × inches = (inches)³ or in³
Choose the correct graph of the function
|y=-
1
√x-2-3
Answers
The correct graph of the function [tex]y=-1\sqrt{x-2-3}[/tex] is attached as picture below.
How can we graph a function?To graph a function, we need to first determine the domain and range of the function. The domain is the set of all possible input values for the function, while the range is the set of all possible output values. Once we have determined the domain and range, we can plot the points on a graph.
To plot the graph, we can choose a set of values for the independent variable (usually denoted as x) and use the function to find the corresponding values of the dependent variable (usually denoted as y). We can then plot these points on the graph and connect them to create a curve that represents the function.
Graph using the end point and a few selected points.
x y
2 − 3
3 −4
4 −4.41
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Suppose a jar contains 7 red marbles and 18 blue marbles. If you reach in the jar and pull out 2 marbles at random at the same time, find the probability that both are red.
Answers
Answer:
63
Step-by-step explanation:
we divided 18÷2=9
and we multiply 9×7=63
Answer:
[tex]p(a) = \frac{7}{100} [/tex]
Step-by-step explanation:
Given:
7 red marbles
18 blue marbles
Total number of marbles: 7 + 18 = 25
All outcomes:
[tex]n = \frac{25 \times 24}{2 \times 1} = 300[/tex]
25 × 24, because the first marble can be pulled out in 25 ways, and the second marble - in 24 ways, since the first one has already been pulled out.We divide by the factorial of 2, because the order does not matter how we pull out the marblesLet's name the event A:
A - "both marbles are red"
Event's A favorable outcomes:
[tex]m(a) = \frac{7 \times 6}{2 \times 1} = 21[/tex]
7 × 6, because we only need to pull the red marbles out, so there are 7 ways to pull out the 1st marble and 6 ways for the 2nd one to be pulled out (the order doesn't matter)[tex]p(a) = \frac{m(a)}{n} = \frac{21}{300} = \frac{7}{100} [/tex]