Factor.x3 - x2 - 20x
A. (x2 + 1)(x - 20)
B. x(x + 4)(x - 5)
C. x(x + 5)(x - 4)
D. not factorable
Answer: B
Mathematics
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Replace the Cartesian equation with an equivalent polar equation.xy = 1
A. 2r2 sin ? cos ? = 1 B. r2 sin 2? = 2 C. r sin 2? = 2 D. 2r sin ? cos ? = 1
Mathematics
Determine if the following is a function or not. The set of ordered pairs {(4, 9), (8, 13), (8, 14), (10, 15)} in the set of whole numbers.
A. Yes B. No
Mathematics
Evaluate the integral.
A. 
(sin7 x - sin9 x) + C
B. 
sin7 x - 
sin9 x + C
C. 
cos5 x - 
cos7 x + C
D. 
sin5 x - 
cos9 x + C
Mathematics
Determine whether there is a maximum or minimum value for the given function, and find that value.f(x) = - 256 -7x2 - 84x
A. Maximum: -4 B. Maximum: 4 C. Minimum: 4 D. Minimum: 0
Mathematics