Solve for x, if 
. Write your answers in exact values only.
?
sin x + 2sin x cos x = 0
?
A. 
, 
, 
, 
B. 0, 
, 
, 
C. , , 
, 
D. , , 
, 
E. 0, , 
, 
Answer: E
Mathematics
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An inlet pipe can fill a tank in 8 minutes. A drain can empty the tank in 10 minutes. If the tank is empty and both the pipe and drain are open, how long will it take before the tank overflows?
A. 38 minutes B. 20 minutes C. 2 minutes D. 50 minutes E. 40 minutes
Mathematics
Prepare a probability distribution for the experiment. Let x represent the random variable, and let P represent the probability.Two marbles are drawn from a bag in which there are 4 red marble and 2 blue marble. The number of blue marbles is counted.
A. 
B. 
C. 
D. 
Mathematics
Evaluate.Given that loga5 = 1.609, and loga7 = 1.946, find loga
.
A. 0.336 B. -0.337 C. 0.827 D. 3.555
Mathematics
Graph the function.y = log2 (x + 2)
A. 
B. 
C. 
D. 
Mathematics