Solve the problem. Round to the nearest tenth when necessary.The roof of a building is in the shape of the hyperbola 
where x and y are in meters. Refer to the figure and determine the height, h, of the outside walls.A = 7 m
A. 29.8 m
B. 5.5 m
C. 119 m
D. 10.9 m
Answer: B
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Write the mixed number as an improper fraction.7
A. 
B. 
C. 
D. 
Factor the expression completely. If the polynomial is prime, state this as your answer.125x3 + y3
A. (5x + y)(25x2 - 5xy + y2) B. (5x - y)(25x2 + 5xy + y2) C. (5x + y)(25x2 + y2) D. (5x + y)(25x2 + 5xy + y2)
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. 28.8%; $272 million B. 38.4%; $383 million C. 27.0%; $379 million D. 30.9%; $382 million
Change the equation 
to quadratic form and solve it by any method.
?
Please enter your answer as two numbers, separated by a comma.
What will be an ideal response?