Factor and, if possible, simplify the expression.1 - sin3x
A. (1 - sin x)(1 - 2 sin x + sin2x)
B. (1 - sin x)3
C. (1 - sin x)(cos x + sin2x)
D. (1 - sin x)(1 + sin x + sin2x)
Answer: D
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Find the inverse of the matrix, if possible.
A. No inverse
B. 
C. 
D. 
Solve the problem.A flare fired from the bottom of a gorge is visible only when the flare is above the rim. If it is fired with an initial velocity of 112 ft/sec, and the gorge is 192 ft deep, during what interval can the flare be seen? 
A. 3 < t < 4 B. 0 < t < 3 C. 9 < t < 10 D. 6 < t < 7
Perform the indicated operations and simplify the result. Leave the answer in factored form.
A. 
B. 
C. 1
D. 12
Solve.The population P, in thousands, of Pine Grove is given by P(t) = 
, where t is the time, in months. Find the interval on which the population was 40 thousand or greater.
A. [0.942, 3.058] B. (-?, ?) C. [3.058, ?) D. [1.177, 3.823]