Scott wants to buy fencing to place around a semicircular rock garden. The diameter of the semicircle is 16 feet. Using 3,14 for , he calculates that he needs to buy about
25.12 feet of fencing. The fencing is sold by the foot, so he plans to buy 26 feet of
fencing
Explain why Scott's reasoning is incorrect, and find the correct amount of fencing he
should buy.

Write the expression in complete factored form. 5n_(c - 3) - n(c - 3) =

The two cylinders are similar. if the ratio of their surface areas is 9/1.44 find the volume of each cylinder. round your answer to the nearest hundredth. a. small cylinder: 152.00 m3 large cylinder: 950.02 m3 b. small cylinder: 972.14 m3 large cylinder: 12,924.24 m3 c. small cylinder: 851.22 m3 large cylinder: 13,300.25 m3 d. small cylinder: 682.95 m3 large cylinder: 13,539.68 m3

Find the least common multiple of the expressions: 1. 3x^2, 6x - 18 2. 5x, 5x(x +2) 3. x^2 - 9, x + 3 4. x^2 - 3x - 10, x + 2 explain if possible