To find the exact answer based on the last step, "
", you must use PEMDAS (attached image below)

Thus the answer is <u>59</u>.
Hope that helps!
Answer:
rong answer is 18
I think the right answer is 0.75
Step-by-step explanation:
Assuming you're just computing the volume, i.e.

we should convert to cylindrical coordinates first, setting

so that the volume is given by

which has a value of

.