3 years ago

Solve each equation for the indicated variable. Solve for pi.

Mathematics

1 answer:

frutty [35]3 years ago

4 0

9514 1404 393

Answer:

π = 2A/r²

Step-by-step explanation:

Multiply by the inverse of the coefficient of π.

A = π(r²/2)

π = 2A/r²

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Eddi Din [679]

Answer:

x= 7

Step-by-step explanation:

11x-2 = 75

11(7) - 2

77 - 2 = 75

x= 7

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3 years ago

One hundred eighty is equal to how many tens

Nadya [2.5K]

There are 18 tens in 180 because if you divide 180 divided by 10, you get 18. you can also do it in your head!!!
Hope this helps!!!

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3 years ago

A square with an area of 196 ft2 is reduced by a factor of 1/4. How long the new sides of the square?

soldier1979 [14.2K]

Answer:

$49$

Step-by-step explanation:

<h2><u>Lesson : Reducing by factors:</u></h2><h2><u /></h2>

Given :

$196ft^2$

$Reduced * factor * of * \frac{1}{4}$

When you have to reduce a number by a certain factor, you must divide the area with the amount that it is reducing from, therefore,

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$49$

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4 years ago

The product of 5 and a number x is 1/4. what is the value of x?

solniwko [45]

The mathematical expression is
5x = 1/4
Divide:
x = (1/4)/5 = (1/4)*5 = 5/4 (ANSWER)

4 0

3 years ago

Read 2 more answers

How much more area does a large pizza with a 12 in. diameter have than a small pizza with an 8 in. diameter? Round your answer t

ivolga24 [154]

Answer: About 63 in²

Step-by-step explanation:

<u>Area of circle = π · r²</u>

r = radius length
π ≈ 3.14

<u>Area of large pizza:</u>

$\pi *r^{2} =3.14*6^{2} =3.14*36=113.04$

<u>Area of small pizza:</u>

$\pi *r^{2} =3.14*4^{2} =3.14*16=50.24$

<u>Difference in area:</u>

$113.04-50.24=62.8$

4 0

3 years ago