Multiply.(9x - 1) (x2 - 3x + 1)
A. 9x3 + 28x2 - 12x + 1
B. 9x3 - 28x2 + 12x - 1
C. 9x3 - 27x2 + 9x + 1
D. 9x3 - 26x2 + 6x - 1
Answer: B
Mathematics
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Multiply.-4 ? (-4) ? 2 ? (-2) ? 3 ? (-5) ? (-3)
A. -13 B. -2880 C. 963 D. 2880
Mathematics
Find the derivative.f(x) = 2(
); (x > 0)
A. - 
x-7/6
B. 10(
)
C. 
x-5/6
D. 
x7/6
Mathematics
The polar coordinates of point P are given. Find all of its polar coordinates.P = (4, -?/3)
A. (4, - ?/3 + 2n?) or (-4, - ?/3 + (2n + 1)?) B. (4, - ?/3 + 2n?) or (4, ?/3 + (2n + 1)?) C. (4, - ?/3 + (2n + 1)?) or (-4, - ?/3 + 2n?) D. (4, - ?/3 + 2n?) or (-4, - ?/3 + 2n?)
Mathematics
Find an equivalent equation in rectangular coordinates.r - 3 sin ? = 3 cos ?
A. - 3y = 3x
B. x2 + y2 - 3y = 3x
C. x2 + y2 + 3y = 3x
D. x2 + y2 = 0
Mathematics