Find the unknown value in the percent proportion 
Round to the nearest tenth, if necessary.part = 30, whole = 75
A. percent = 4%
B. percent = 250%
C. percent = 20%
D. percent = 40%
Answer: D
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Solve the equation for the indicated variable. (Leave ± in your answer, when appropriate.)rm = t2 - mt for t
A. t = 
B. t = 
C. t = 
D. t = 
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]
Find the degree and leading coefficient of the polynomial.-16x9 - 6x + 9
A. Degree: 11; leading coefficient: -16 B. Degree: 10; leading coefficient: -16 C. Degree: -16; leading coefficient: 9 D. Degree: 9; leading coefficient: -16
Graph the inequality on the number line.x ? -3
A. 
B. 
C. 
D. 