Formula of v. of sphere = (<span><span>4</span>π</span>r

)/3<span>
r = 3
pi = 3
(4 x 3 x </span>

)/3 = 113.1
Answer = 110cm
The value of y when x= 2401 is -10
<h3>How to determine the value of x?</h3>
An inverse variation is represented as:

Where k is the proportionality constant
When y = -70, x = 49
So, we have:

Take the square root of 49

Multiply through by 7
k = -490
Substitute k = -490 in 

When x =2401, we have

Evaluate the square root

Divide
y = -10
Hence, the value of y when x= 2401 is -10
Read more about variation at:
brainly.com/question/14254277
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Let's take the difference between the old and new (70 - 60) to get 10 and then divide this by the old (70) amount...10/70 = .142857 convert to a percent by moving the decimal 2 spaces to the right... 14.29 %
Here, to find the average rate of change, you would simply divide 270 by 63. And when that is done, you would get a long decimal. 4.285714285714286
And since you obviously can't put in such a long decimal as your answer, you would round it instead. Once rounded, you would end up with 4.29 (because the number after 8 is five, which rounds up, which would turn the 8 to 9.)
Answer:
I think A
Step-by-step explanation:
sorry if it is not correct hope it helps