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Dima020 [189]
2 years ago
10

What is the scale factor from Figure A to Figure B?

Mathematics
1 answer:
JulijaS [17]2 years ago
5 0

Answer:

  • 1/3

Step-by-step explanation:

The figure B is the scaled copy of the figure A.

The both figures are similar to each other.

<u>The scale factor is the ratio of corresponding sides of figure B to A:</u>

  • k = 3/9 = 1/3

or

  • k = 1.2/3.6 = 1/3
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The area of a rectangle whose perimeter is a fixed 80 feet is given by A=40w - w2 , where w is the width of the rectangle. Deter
Stolb23 [73]

Answer:

Width=20 feet

Since Length=Width=20 feet, the rectangle is a Square.

Step-by-step explanation:

Area, A=40w - w^2

To determine the width of the rectangle that gives the maximum area, we take the derivative of A and solve for its critical point.

A'=40 - 2w\\$When A'=0\\40-2w=0\\40=2w\\w=20 feet

The width of the rectangle that gives the maximum area =20 feet.

Perimeter of a rectangle=2(l+w)

Perimeter of the rectangle=80 feet

2(l+w)=80

2l+2(20)=80

2l=80-40

2l=40

l=20 feet

Since the length and width are equal, the special type of rectangle that produces this maximum area is a Square.

7 0
2 years ago
Help please thank you guys! Really appreciate it
dalvyx [7]

Answer:

1

Explanation:

Radius = C/2π

C is 6.28 and 2*pi is also 6.28

So 6.28/6.28 = 1.

6 0
2 years ago
Read 2 more answers
Inverse operations add up, multiply, divided?
maxonik [38]

Answer:

Addition and subtraction are inverse operations. Start with 7, then add 3 we get 10, now subtract 3 and we get back to 7.

Another Example: Multiplication and division are inverse operations. Start with 6, multiply by 2 we get 12, now divide by 2 and we get back to 6.

3 0
3 years ago
Solve the system of equations. ​
lys-0071 [83]

Step-by-step explanation:

Solve the system via elimination (add the equations):

-10y + 9x = -9

+ (10y + 5x = -5)

-----------------------

14x = -14

x = -1

Plug in the value for 'x' into the second equation:

-10y + 5(-1) = -5

Solve for y:

-10y - 5 = -5

--> -10y = 0

--> y = 0

x = -1

y = 0

6 0
3 years ago
Whats the answer of 39 + 156 1/5
Rudiy27
Is 156 1/5 a mixed number? if so, your answer should be 70.2
you have to convert the mixed number into a decimal. 

156 1/5= 31.2

now add the them both,
39+31.2=70.2 

hope this helps....
4 0
3 years ago
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