Ou would like to put up a fence completely around your rectangular backyard because you plan to install a swimming pool. you know the length of your backyard is 64 feet, and it has an area of 2880 square feet. fencing costs 11$ per foot. 1. find width of backyard 2. how much will it cost to purchase the fence for the backyard?

width=45 ft

cost=2398

Step-by-step explanation:

2880/64=45

(45*2+64*2)11=2398

yes.. it's proven to be 36.

answer: -10

step-by-step explanation:

s(t) = 1 - 10t

s(x) = 1 - 10x

s(x + h) = 1 - 10(x + h)

            = 1 - 10x - 10h

s(x + h) - s(x) = 1 - 10x - 10h - (1 - 10x)

                      = 1 - 10x - 10h - 1 + 10x

                      = -10h

= -10