Solve the equation by factoring.x2 - 6x - 27 = 0
A. {3, -9}
B. {-3, 9}
C. {3, 9}
D. {-3, -9}
Answer: B
Mathematics
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A. (y - 13)(x - 15) B. (15y + 195) - (xy + 13x) C. (y + 13)(15 - x) D. (y + 13)(15 + x)
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Identify the degree of the polynomial.5x6 - 8x7 + 9x2 - 7
A. 15 B. 7 C. 6 D. 2
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Solve the problem.The instantaneous growth rate of a population is the rate at which it is growing at every instant in time. The instantaneous growth rate r of a colony of bacteria t hours after the start of an experiment is given by the function 
for 
Find the times for which the instantaneous growth rate is zero.
A. 1 sec, 2 sec, and 4 sec B. 1 sec C. 2 sec and 4 sec D. 1 sec and 2 sec
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Solve the problem.If cos ? = 
, ? in quadrant IV, find the exact value of tan
A. 
B. 
C. 
D. 
Mathematics