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Serhud [2]
3 years ago
10

GEOMETRY | Finding Surface Area of Spheres | Sphere: circumference of great circle = π cm (how am i supposed to answer that with

out a number in centimeters)
Mathematics
2 answers:
Akimi4 [234]3 years ago
7 0

Answer:

π cm²

Step-by-step explanation:

Circumference = 2πr

π = 2πr

r = ½

Surface area of a sphere:

4πr²

4π(½)²

4π(¼)

π

tatiyna3 years ago
3 0

Answer:

SA = pi cm^2

Step-by-step explanation:

The circumference is given by

C = 2 * pi *r

Pi = 2 * pi *r

Divide each side by 2 pi to find the radius

pi/ 2 pi = 2 pi * r/ 2 pi

1/2 = r

We want to find the surface area

SA = 4 pi r^2

SA = 4 pi (1/2)^2

SA = 4 * pi *1/4

SA = pi

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Help me please thank you
oee [108]

Hello from MrBillDoesMath!

Answer:

2(x+8) = 40


Discussion:

Rewrite the original Question as

" Twice the (sum of a number and 8) is 40"   =>

2                ( x                              +    8 ) = 40 =>

2 (x+8) = 40


which is the third bullet point from the top


Thank you,

MrB

7 0
4 years ago
There are already 1,600 gallons of water in a swimming pool. If water is filling the pool at a rate of 25 gallons per minute, wh
AnnZ [28]

Answer:

y = 25m + 1400 is your equation

7 0
3 years ago
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Solve for n.<br> 4 x n= 21.6
Kay [80]

Answer:

n = 5.4

Step-by-step explanation:

Equation:  4n = 21.6

To solve this equation for n, divide both sides by 4 to get n by itself.

<u />

<u>Step 1:  Divide both sides by 4</u>

4 * n / 4 = 21.6 / 4

n = 5.4

Answer:  n = 5.4

3 0
3 years ago
Read 2 more answers
Write these equations in y=mx+b form....
nekit [7.7K]
1. y = -1/2 + 2.
2. y= 2/5x - 4/5

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4 years ago
Which table represents a linear function?
OleMash [197]

Answer:

the last option

Step-by-step explanation:

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5 0
3 years ago
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