Combine like terms.8x2 + 2x - 6x2 + 9x + 5

A. 2x2 + 11x + 5
B. 13x6 + 5
C. 10x3 + 3x3 + 5
D. 2x4 + 11x2 + 5


Answer: A

Mathematics

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Solve. Then graph the solution.(3 - 5x)2 ? -9

A.  ? 

B. (-?, ?)

C. ?

D.

Mathematics

Find the angle of least positive measure coterminal with the given angle.1280°

A. 20° B. 560° C. 110° D. 200°

Mathematics

Solve the direct variation.If s varies directly as the square of t and s = 75 when t = 5, what is the value of s when t = 8?

A. 192 B. 120 C. 15 D. 40

Mathematics

Solve the problem.Suppose the cost per ton, y, to build an oil platform of x thousand tons is approximated by  What is the cost per ton for x = 100?

A. $346.15 B. $50,000.00 C. $900.00 D. $34,615.38

Mathematics