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Burka [1]
3 years ago
13

Identify the volume and surface area in terms of π of a sphere with a great circle area of 225π ft2

Mathematics
2 answers:
Dafna1 [17]3 years ago
7 0
The answer is going to be v= 4500ft3;S=900ft2
adelina 88 [10]3 years ago
7 0

Answer:

B (V = 4500π ft3; S = 900π ft2)

Step-by-step explanation:

If the great circle's area is 225pi, that makes the radius sqrt225 = 15

The volume of a sphere is (4/3) pi r^3, so the volume would be 3375 * 4/3 pi= 4500pi

The surface area of a sphere is 4 pi r^2, so the Surface area would be 4 * 225 pi = 900pi

That makes the answer B (V = 4500π ft3; S = 900π ft2)

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I believe the radius would be 3.39

Hope this helps! Good luck! :)

8 0
3 years ago
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What is the algebraic expression for the quotient of j and 8
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3 years ago
Class 8 squares and square roots without adding find the sum of a) 1+3+5+7+9+11+13+15+17.
Nata [24]

Answer:

given

n=9

a=1

d=3-1=2

Step-by-step explanation:

now , by formula,

sn = n/2(2a+(n-1)d)

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8 0
2 years ago
Find three consecutive odd integers such that the sum of the largest and twice the smallest is 25. If x represents the smallest
Murrr4er [49]
1. x
2. x + 2
3. x + 4

x + 4 + 2x = 25. Second option is the answer.


Combine like terms
3x + 4 = 25
Subtract 4 from both sides
3x = 21
Divide both sides by 3
x = 7
5 0
3 years ago
b) y= 5/x What happens to the value of y if the value of x triples? Select your answer. A. x2 B. x3 C. /2 D. /3
jeyben [28]

Answer:

D.)

Step-by-step explanation:

y = 5/x

so when the value of x triples, the new X becomes;

X = 3x

So,

Y = 5/ X

=> Y = 5/3x

=> Y = 1/3 . 5/x

=> Y = 1/3 . y

so the new value of y ( Y ) is 1/3 times original y.

Hence, D. is the answer

3 0
2 years ago
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