Evaluate 
at the indicated value of x. Round your result to three decimal places.
?
?
A. -1.407
B. 1.407
C. 0.711
D. 0.039
E. -0.711
Answer: B
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Find the expected value.A contractor is considering a sale that promises a profit of $23,000 with a probability of .7 or a loss (due to bad weather, strikes, and such) of $12,000 with a probability of .3. What is the expected profit?
A. $24,500 B. $11,000 C. $16,100 D. $12,500
Find the median for the given sample data.A new business had the following monthly net gains:
Find the median net gain.
A. $5441.89 B. $4215.00 C. $4897.70 D. $4545.00
Solve the problem.The square photo is x inches by x inches and is bordered by a matting that is 1 inch wide. Write the polynomial that calculates the area of the entire framed picture. 
A. (2x + 1) in.2 B. (x2 + 2x + 1) in.2 C. (x2 + 1) in.2 D. (x2 + 2x) in.2
Solve.The radius r of a plastic tube used in manufacturing a child's toy must not differ from the standard s by more than 2 millimeters. The manufacturing engineers express this as 
If the standard s is 50, solve the inequality for the radius r. Express the answer in set-builder notation.
A. { r 
}
B. { r 
}
C. { r 
}
D. { r 
}