Multiply.(-2x + 12)(-3x - 9)
A. 6x2 - 18x - 108
B. -5x2 - 18x - 108
C. -5x2 - 18x - 18
D. 6x2 - 18x - 18
Answer: A
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Solve the problem.Suppose that a household appliance draws a current represented by the relation src="https://sciemce.com/media/4/ppg__rre0509191659__f1q49g5.jpg" alt="" style="vertical-align: -4.0px;" /> where a, k, and d are constants.
where t is time measured in seconds. The power consumed by the appliance is 
where R is a constant. Take R to be 12 and graph the power in 
by 
and use an identity to write the expression for the power in the form
A. P = -384 cos(240?t) + 384
[0, 0.04, 0.01] by [-200, 2000, 200]
B. P = 384 cos(240?t) + 384
[0, 0.04, 0.01] by [-200, 2000, 200]
C. P = 768 cos(240?t) + 768
[0, 0.04, 0.01] by [-200, 2000, 200]
D. P = 384 cos(120?t) + 384
[0, 0.04, 0.01] by [-200, 2000, 200]
Simplify.8a - 2a - a - 12
A. 6a - 13 B. 5a - 12 C. 6a - a - 12 D. 6a - 12
Find the LCD. Do not combine fractions.
, 
A. x(x + 1)(x + 4) B. x(x + 4) C. (x + 4)2 D. x(x + 4)2
Factor completely.u2 - 4uv - 32v2
A. Prime B. (u - 4v)(u + 8v) C. (u - 4v)(u + v) D. (u + 4v)(u - 8v)