Which is the product of (3)(7) and why?
a-21 because you are adding 7 times, the number 3
b-21 because you are adding 3 times, the number 7
c 21 because you are adding 7 times, the number 3
d21 because you are adding 3 times, the number 7

What describes horizontal cross section of the right rectangle 6m 8m 5m

Find the volume of the solid whose base is the region bounded by f(x), g(x) and the x-axis on the interval [0, 1], and whose cross-sections perpendicular to the y-axis are squares. your work must show the integral, but you may use your calculator to evaluate it. give 3 decimal places for your answe

Prove that 16^4-2^13-4^5 is divisible by 11.