Answer the problem below
2 answers:
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Answer:
C. 128/3 meters cubed
Step-by-step explanation:
The volume of a cylinder is denoted by: , where r is the radius and h is the height. We know it's equal to 64, so we can set that equal to V:
We know that the sphere and cylinder have the same height and radius. However, the "height" of a sphere is actually the same as its diameter, which is twice its radius. Then, we can replace h in the above equation with 2r:
Now, the volume of a sphere is denoted by: , where r is the radius. From above, we know that
, so we can plug this into the equation:
Thus, the answer is C.
Answer:
Simplify
The answer is:
Step-by-step explanation:
We have the expressions:
Now, we need simplify:
We need to replace each term by the expressions:
We need to remember the rule of signs:
With this in mind we solve the parentheses:
let's group common terms
We must add and subtract common terms:
The answer is: