Perform the indicated operations. Write the answer using only positive exponents. Assume all variables represent positive real numbers.
A. 
B. 
C. x25/3
D. x17/3
Answer: B
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Solve the inequality and give the solution set in set builder notation.
? 0
A. {x| 1 < x ? 5} B. {x| 1 ? x ? 5} C. {x| x < 1 or x ? 5} D. {x| x ? 5}
Find the radius of a circle where a central angle ? intercepts an arc of length s. Round your answer to one decimal place when necessary.? = 1.5, s = 15 cm
A. 22.5 cm B. 10 cm C. 7.2 cm D. 3.6 cm
The rectangular coordinates of a point are given. Express the point in polar coordinates with 
and 
(0, 
)
A. (7, 90°)
B. (7, 270°)
C. (
, 90°)
D. (
, 270°)
Solve the problem.The profit function for a product is given by P(x) = -0.7x3 + 115.5x2 - 3710x - 84,000 dollars, where x is the number of units produced and sold. Determine the levels of production and sale that give break-even.
A. 90 or 120 units B. 100 units C. 80 or 100 units D. 120 units