Is 6655 a perfect cube? If not find the smallest number by which it must be multiplied to make it a perfect cube.
a)Find the perfect cube number.

c) Find the cube root of the cube number so obtained.

What number produces an irrational number when multiplied by -1.25

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

Simplify using positive exponents only.