Factor and simplify the expression.1 - 2 sin2x + sin4x
A. (1 + tan2x)
B. (1 -sin2x)
C. sin2x
D. cos4x
Answer: D
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Assume that the probability that an airplane engine will fail a test is 
and that the aircraft in question has 4 engines. What is the probability that exactly 1 engine(s) will survive the test?
?
A.
B.
C.
D.
Provide an appropriate response.In November, Steve uses his credit cards to buy $30.00 of holiday gifts each week. After 8 weeks he begins saving $30.00 each week to pay his credit card bill. Graph the absolute-value function to represent the amount Steve has saved since he started buying holiday gifts over the appropriate domain. (Hint: Let purchases on credit cards represent negative savings.)
What will be an ideal response?
Perform the indicated arithmetic.7
? 3
A. 21
B. 63
C. 10
D. 22
Convert the measure to the one that is underlined and then add.2.56 kg + 246 g
A. 246,002.56 kg B. 2.806 kg C. 2806 kg D. 502 kg