The equation to find volume is V=

r²h and you know all of your numbers other than h so you plug all that in. 100=3.14×2²×h → 100=3.14×4×h → 100=12.56×h → Divide 12.56 from both sides 100÷12.56=12.56×h÷12.56 → 7.96cm=h.
I hope that helps!
Answer:
c= (1/4,2)
Step-by-step explanation:
i did the test and it came out correct i promise !
The solution is
We group like terms, to obtain;
Simplify to get,
We further simplify to get;
This can also be rewritten as;
Or
This can be represented on the number line as shown in the diagram.
The value of the expression, 5x^2 - 4, when x = 2 is: 16.
<h3>What is the the Value of an Expression?</h3>
To find the value of an expression, plug in the given value of the variable and solve by simplifying.
Given the expression, 5x^2 - 4, when x = 2, we would have:
5(2)^2 - 4
5(4) - 4
20 - 4
= 16
Therefore, the value of the expression, 5x^2 - 4, when x = 2 is: 16.
Learn more about value of expression on:
brainly.com/question/625174