Solve and check the equation.(4x - 2)1/3 + 3 = -4
A. 
B. 
C. 
D. ?
Answer: C
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Find the value for the function.Find -f(x) when f(x) = |x| - 6.
A. |-x| - 6 B. -|x| + 6 C. -|x| - 6 D. |-x| + 6
Round the decimal to the given place value.714.758, nearest whole number
A. 714.76 B. 715 C. 714 D. 714.8
Use the intermediate value theorem to approximate the one real zero on the given interval. Round your answer to two decimal places.f(x) = x4 - x3 - 7x2 + 5x + 10; [-3, -2]
A. 2.45 B. -2.45 C. -2.24 D. 2.24
Solve the problem.Economists use what is called a Leffer curve to predict the government revenue for tax rates from 0% to 100%. Economists agree that the end points of the curve generate 0 revenue, but disagree on the tax rate that produces the maximum revenue. Suppose an economist produces this rational function 
where R is revenue in millions at a tax rate of x percent. Use a graphing calculator to graph the function. What tax rate produces the maximum revenue? What is the maximum revenue?
A. 36.6%; $268 million B. 35.8%; $276 million C. 41.2%; $264 million D. 34.0%; $271 million