Solve.A projectile is thrown upward so that its distance above the ground after t seconds is 
After how many seconds does it reach its maximum height?
A. 20 sec
B. 30 sec
C. 10 sec
D. 40 sec
Answer: A
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Simplify. Write the expression as a single logarithm with a coefficient of 1.log10(x - 1) + log10(x + 9)
A. log10(2x + 8)
B. log10(x + 8)
C. log10
D. log10(x - 1)(x + 9)
Multiply.-5a2b9(12a4b9 - 12b5 - 7a)
A. -60a4b9 + 60b5 + 35a B. -60a6b18 + 60a3b14 - 7a C. -60a6b18 - 12b5 - 7a D. -60a6b18 + 60a2b14 + 35a3b9
Solve the absolute value equation or indicate that the equation has no solution.
= 5
A. {8, 0} B. {-8, 8} C. {-8, 0} D. ?
Use the Rational Zeros Theorem to find all the real zeros of the polynomial function. Use the zeros to factor f over the real numbers. f(x) = 2x4 - 16x3 + 33x2 - 8x + 16
A. -4, 4; f(x) = (x - 4)(x + 4)(2x2 + 1) B. 4, multiplicity 2; f(x) = (x - 4)2(2x2 + 1) C. no real roots; f(x) = (x2 + 16)(2x2 + 1) D. -4, multiplicity 2; f(x) = (x + 4)2(2x2 + 1)