Solve the problem.Below is a diagram of a water slide. The slide is 21 ft long. The ladder leading to the slide is 17 ft long. How far is it from the end of the slide to the foot of the ladder? Round approximations to the nearest tenth. 
?
A. 19 ft
B. 12.3 ft
C. 6.2 ft
D. 76 ft
Answer: B
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Factor the polynomial completely. If the polynomial cannot be factored, say it is prime.
x2 + 
x + 
A. 
(x - 7)(x - 1)
B. 3(x + 7)(x + 1)
C. 
(x + 7)(x + 1)
D. Prime
Evaluate f(x) at the given value of x.f(x) = 
; x = -8
A. - 
B. 
C. 1
D. 
Solve the problem.Mary lives on a corner lot. The neighborhood children have been cutting diagonally across her lawn instead of walking around the yard. If the diagonal distance across the lawn is 
and the longer part of the sidewalk is twice the shorter length, how many feet are the children saving by cutting across the lawn? Round to the nearest foot if necessary.
A. 7 ft B. 9 ft C. 27 ft D. 12 ft
Solve the problem.The polynomial 0.0034x4 + 0.0047x3 + 0.0053x2 + 0.17x + 1.73 gives the predicted sales volume of a company, in millions of items, where x is the number of years from now. Determine the predicted sales 18 years from now. Round your answer to the nearest hundredth million.
A. $390.84 million B. $358.01 million C. $386.41 million D. $538.53 million