Marie Pierre

1. The volume V of a right circular cylinder is given as V = pir^2h, where r is the radius of the base and h is the height of the cylinder. a. Express the height of the cylinder in terms of iuts volume and radius of the base. b. Translate the equation abo...

Given the table with values for A and r, answer the folowing: r 2 3 4 5 A 12.57 11.31 50.28 78.56 a. What equation represtnts the relationship of the values in the table above? b. Find the constant of variation. c. If r = 8, what would be A?

yes, i know. that is why i also had a hard time. but this is what is written in our textbook. oh well! i don't know what to do now. :)

nope. we are learning about variations. i think with this problem, it involves direct square variation. but the problem is, i get a different answer when r=3 and A=11.31 from the rest. is that possible?

oh ok. thanks reiny. :)

I only did 1 and 3 but I don't know if its correct. 1. L = a/w ===== 8 = a/3 (3(8) = (a/3)(3) 24 = a L = 24/4 = 6 3. W = FD ====== (60N)(15m) = 900 Nm