help me for 50 points
Answer:
I hope it helped U
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Answer:
Step-by-step explanation:
solve for r
A= 3r(to the 2 power) i couldn’t make it a small two
Answer:
r = [tex]\sqrt{\frac{a}{3}}[/tex]
Step-by-step explanation:
1. A = 3r²
(Divide 3 by both sides)
2. A/3 = r²
(Square root both sides)
√A/3 = r
On solving for 'r' we get - r = [tex]\sqrt{\frac{A}{3} }[/tex].
We have the following expression -
[tex]$A=3r^{2}[/tex]
We have to solve for r.
Solve for x : [tex]$x^{2} = 9[/tex]On solving, we get -
x = [tex]$\pm\sqrt{9}[/tex]
x = [tex]$\pm3[/tex]
According to the question, we have -
[tex]$A=3r^{2}[/tex]
[tex]$r^{2} = \frac{A}{3}[/tex]
r = [tex]\pm\sqrt{\frac{A}{3} }[/tex]
Since, the area cannot be negative, therefore -
r = [tex]\sqrt{\frac{A}{3} }[/tex]
Hence, on solving for 'r' we get - r = [tex]\sqrt{\frac{A}{3} }[/tex].
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How many ways can you make change for 60¢ using only nickels, dimes, and quarters?
There are 13 ways to make change for 60¢ using only nickels, dimes and quarters.
Determination of the number of combinations for a given amount of moneyIn the United States of America, a nickel equals 0.05 dollar, a dime equals 0.10 dollar and a quarter equals 0.25 dollar.
For 0.60 dollar we have the following expression in terms of nickels ([tex]n[/tex]), dimes ([tex]d[/tex]) and quarters ([tex]q[/tex]):
[tex]0.25\cdot q + 0.10\cdot d + 0.05\cdot n = 0.60[/tex], where [tex]q,\,d,\,n \in \mathbb{N}_{O}[/tex] (1)
Since quarters are the money of greatest value, we assume arbitrary quantities and count corresponding solutions, whose representations are included below:
Case 1 ([tex]q = 0[/tex])[tex]n = 12-2\cdot d[/tex] (2)
According to the first graph, there are seven forms in this scenario.
Case 2 ([tex]q = 1[/tex])
[tex]n = 7-2\cdot d[/tex] (3)
According to the graph case_2, there are four forms in this scenario.
Case 3 ([tex]q = 2[/tex])[tex]n = 2- 2\cdot d[/tex]
According to the graph case_3, there are two forms in this scenario.
Hence, there are 13 forms to make change for 60¢ using only nickels, dimes and quarters. [tex]\blacksquare[/tex]
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I need answers for problem solving
Answer:
243
Step-by-step explanation:
the answer is 243 for number 6
Answer:
all you gotta do is do 2430 divided by ten
PLEASE HELP ASAP FOR BRAINLIEST
For each graph below, state all intervals where the function is increasing. Also state all intervals where the function is decreasing.
0.92403 to the nearest ten-thousandth
Answer:
bff
Step-by-step explanation:
bfbfb
Answer:
0.9240
Step-by-step explanation:
1. What is the value of x in the diagram?
42
329
E
A. 64°
B. 10°
C. 20°
O D. 42°
Answer:
10
Step-by-step explanation:
B=180-42=138
C=32
triangle must have 180degrees: 180-(138+32)=X
x=180-170=10
Evaluate 2(x - 4) + 3x - y for x = 3.
Answer:
7 - y
Step-by-step explanation:
2(x - 4) + 3x - y for x = 3
~Substitute
2(3 - 4) + 3(3) - y
~Simplify
2(-1) + 9 - y
-2 + 9 - y
7 - y
Best of Luck!
Which of the following statements are true? Select all that apply. A. 1,000 is both a perfect square and a perfect cube. B. 27 is a perfect cube. C. 6 is neither a perfect square nor a perfect cube. D. 9 is a perfect cube. E. 36 is a perfect square.
Answer:
C
E
Step-by-step explanation:
help asap!!!!!!!!!!!!!!!!!!!!!!!
Answer:
part 1: c is the total cost of the 3 pounds of oranges.
part 2: 3 pounds of oranges cost c dollars and 1 pound of oranges is unknown.
part 3: 1c÷3
4 Times the sum of a number and 6 is 5 less than 3 times the same number. write an equation and solve for the number
Answer:
-29
Step-by-step explanation:
4× (x+6) = -5. + 3x
4 times the sum of a number is 5 less than 3 times the same number
4×(x+6) = 3x - 5
4x + 24 = 3x - 5
x = -29
How many centimeters are in 5.2 inches?
[1 inch = 2.5 cm]
13 cm
11 cm
7.30 cm
1.92 cm
Step-by-step explanation:
Since,
1 inch=2.5 cm
Therefore,
5.2 inches=2.5×5.2 cm=13 cm
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Answer:
1inc=2.5cm 5.2inches=?5.2×2.552/10 × 25/10when u reduce u get260/20 answer is13cmA rectangle has a length of 12 inches and a width of 8 inches. Lexi draws a scale copy of the rectangle using a scale factor of 2:3. What are the dimensions of the scale copy
You give up a full-time salary of $52,000 a year to go to school for 2 years. The total cost of going to school is $36,000. If you want to be able to recover your investment in 4 years or less, what is the minimum salary you would need to earn upon earning your degree?
Answer:
$9000
Step-by-step explanation:
36000:4=$9000
One side of a rectangle is 4 ft longer than four times another side. The area of the rectangle is 440 ft?.
Find the length of the longer side.
Answer:
One side is 87.2 The other side is 352.8
Step-by-step explanation:
(4x+4)*x=440
5x+4=440
5x=436
x=87.2
(4(87.2)+4)=352.8
NEED HELP INSTANTLY!!!!
What are the roots of the polynomial?
Write a rule in words and as an algebraic expression to model the relationship.
15. The cost of beverages in a vending machine is shown.
Beverages cost
1. $1.25
2. $2.50
3. $3.75
find x
14.5, -8, -4.5, x; The mean is 9.5.
Answer:
x = 36
Step-by-step explanation:
multiply 4 and 9.5 to get the total amount.
38 = 14.5 + (-8) + (-4.5) + x; hence x is 36.
Answer: x=36
Step-by-step explanation:
To solve this question, we first want to know what mean is. Mean is the same as the average. You take the sum and divide it by the amount. Since we know there are 4 numbers and the mean, we can easily find the value of x.
[tex]\frac{14.5-8-4.5+x}{4} =9.5[/tex] [multiply both sides by 4]
[tex]14.5-8-4.5+x=38[/tex] [combine like terms]
[tex]2+x=38[/tex] [subtract both sides by 2]
[tex]x=36[/tex]
Now, we know that x=36.
Calculate the derivative using implicit differentiation:
∂w /∂z,x^(5)w+w^7+wz^2+8yz=0
∂w/ ∂z= ?
Step-by-step explanation:
Given: [tex]x^5w + w^7 + wz^2 + 8yz = 0[/tex]
Taking the partial derivative of the above equation with respect to z, we get
[tex]x^5\dfrac{\partial{w}}{\partial{z}} + 7w^6\dfrac{\partial{w}}{\partial{z}} + z^2\dfrac{\partial{w}}{\partial{z}} + 2z + 8y =0[/tex]
Collecting all terms containing [tex]\frac{\partial{w}}{\partial{z}},[/tex] we get
[tex](x^5 + 7w^6 + z^2)\dfrac{\partial{w}}{\partial{z}} = -2(z + 4y)[/tex]
Then
[tex]\dfrac{\partial{w}}{\partial{z}} = \dfrac{-2(z + 4y)}{x^5 + 7w^6 + z^2}[/tex]
The derivative using implicit differentiation can be calculated and after rearranging the terms.
What is implicit differentiation?Implicit differentiation is the technique in which the derivative of y with respect to x using implicit differentiation without having to solve the supplied equation for y.
We have:
[tex]\rm x^5w+w^7+wz^2+8yz=0[/tex]
We have to find the:
= ∂w/ ∂z
[tex]\rm \dfrac{\partial }{\partial z}[\rm x^5w+w^7+wz^2+8yz=0][/tex]
[tex]\rm x^5\dfrac{\partial w}{\partial z} +7w^6\dfrac{\partial w}{\partial z}+z^2\dfrac{\partial w}{\partial z}+2z+8y=0[/tex]
After rearranging the terms:
[tex]\rm (x^5 +7w^6+z^2)\dfrac{\partial w}{\partial z}= -2(z+4y)[/tex]
[tex]\rm \dfrac{\partial w}{\partial z}= \dfrac{-2(z+4y)}{x^5 +7w^6+z^2}[/tex]
Thus, the derivative using implicit differentiation can be calculated and after rearranging the terms.
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Find the value of x for which ABCD must be a parallelogram.
Answer:
ans is 7
Step-by-step explanation:
as we know that angle B and C are equal cause it is an alternative angle so
3x-17=25-3x
so 3x+3x=25+17
6x=42
x=7
Answer:
7
Step-by-step explanation:
The value of x only makes the figure a llgm because the question says so. It needs one more fact to be a llgm.
That said, you are 1/3 the way there. Those angles marked must be equal.
3x - 17 = 25 - 3x Add 3x to both side
3x + 3x - 17 = 25 Combine
6x - 17 = 25 Add 17 to both sides
6x = 25 + 17 Combine
6x = 42 Divide by 6
6x /6 = 42/6
x = 7
III. Round to the nearest thousand.
21. 3,109
22. 2,786
23. 4,876
24. 8,543
25. 2,264
Answer:
21. 3000
22. 3000
23. 5000
24. 9000
25. 2000
Step-by-step explanation:
look at the number in the 'hundreds', if its between 1-4, you round the number down, and if its between 5-9, you round up.
Determine whether (a) x = -1 or (b) x = 2 is a solution to this equation
Answer: (a) x = -1
Step-by-step explanation:
Given
-2 (x - 1) = 1 - 3x
Expand parentheses and apply the distributive property
(-2) · x - (-2) · 1 = 1 - 3x
-2x + 2 = 1 - 3x
Add 3x on both sides
-2x + 2 + 3x = 1 - 3x + 3x
x + 2 = 1
Subtract 2 on both sides
x + 2 = 1 - 2
[tex]\boxed{x=-1}[/tex]
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The length of a bacterium is about 4 × 10-5 inch. What is the length of a bacterium written as an ordinary number?
Answerplease give moreinfo
Step-by-step explanation:
How would you write a gain of 16 points as an absolute value?
Okay imma ask a question and The first person to answer and get it correct wins and I will give you a Brillantest
196x84-23+56-109+54x345-56+34x856=
Answer:
yoooo it equals 1
Step-by-step explanation:
Which expression is the best estimate of the product 7/8 and 8 1/10
Answer:567/ 80 or 7(which was rounded to the nearest whole number)
Step-by-step explanation:
Use the Perfect Square Trinomial and provide the first step to calculating 32^2 without a calculator.
(30 − 2)2
(30 + 2)2
(28 − 4)2
(28 + 4)2
Answer:
64
Step-by-step explanation:
(30+2)2
30*2+2*2
60+4
64
Answer:
B. (30+2)^2
Step-by-step explanation:
(30+2)^2=30^2+2(30)(2)+2^2=900+120+4=1024
32^2=1024. The way to solve without calculator is above.
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a rectangle has points at 4, 2, 6, 2, 4, 7, and 6, 7 what is the perimeter of the square
Answer:
Perimeter=14
Step-by-step explanation:
SEE THE IMAGE FOR SOLUTION
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100,000,000, + 500,000,000 equals
700,000,000
y a i ta
Step-by-step explanation:
100,000,000 + 500,000,000 = 600,000,000
Use the rule for order of operations to simplify the expression as much as possible:
22−2(9⋅2−8)