Solve the equation.x2 - 9 = 8x
A. x = -1, 9
B. x = 1, -9
C. x = -3, 3
D. x = -3, -3
Answer: A
Mathematics
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Find the mass of the thin bar with the given density function?(x) = 5 + x2; for 0 ? x ? 1
A. 
B. 5
C. 0
D. -2
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Use a grapher to estimate the relative extrema of the function.
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Solve the inequality and express the solution set in interval notation. Graph the solution set on the real number line.
? 
+ 2
A. [-9, ?)
B. (9, ?)
C. (-?, 9]
D. [9, ?)
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Factor completely. If the polynomial is prime, say so.30y2 - 25y
A. 5y(6y + 5) B. 5y(6y - 5) C. -5y(6y + 5) D. y(30y - 25)
Mathematics