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Helium is pumped into a spherical balloon at a constant rate of 2 cubic feet per second. How fast is the radius increasing after 4 minutes? At what time (if any) is the radius increasing at a rate of 140 feet per second?

Question #57453

Question #a1d99

How do you write the expression #root6(2)# in exponential form?

How do you solve #\frac { 31} { b } = \frac { 124} { 208}#?

Question #24f86

A zebra starts from rest and accelerates at #1.9# #m##/s^2#. How far has the zebra gone after #5# seconds?

Why the set of integers {...3, 2,1,0, 1, 2, 3..) is NOT "closed" for division?