Without graphing, determine the range of the function f(x) = 5|x - 71+2 over the
interval (-5, 10).
a. [17,62]
b. [2,17]
c. [-7,2]
d. [2,62]

Aramp rises 4 feet over a distance of 10 feet. what is the length of the ramp?

Your company will replace the asphalt roofs on all the buildings at the factory complex shown below. the buildings have flat roofs. you charge according to the total roof area. what is this area, in square yards?

Arandom sample of n = 25 observations is taken from a n(µ, σ ) population. a 95% confidence interval for µ was calculated to be (42.16, 57.84). the researcher feels that this interval is too wide. you want to reduce the interval to a width at most 12 units. a) for a confidence level of 95%, calculate the smallest sample size needed. b) for a sample size fixed at n = 25, calculate the largest confidence level 100(1 − α)% needed.