Graph the function.f(x) = 
A. 
B. 
C. 
D. 
Answer: D
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Use various trigonometric identities to simplify the expression then integrate.
A. - 
cos4 ? + C
B. - 
cos5 ? + C
C. 
cos2 ? + C
D. 
cos3 ? + C
Use the quadratic formula to solve the equation.12y2 = 13y - 3
A. y = 
, 
B. y = 
, 
C. y = - 
, 
D. y = 3, 
Suppose a radioactive substance decays according to the formula 
. How long will it take for the substance to decay to half the original amount?
?
A. It will take 5,166 years for the substance to decay to half the original amount. B. It will take 5,277 years for the substance to decay to half the original amount. C. It will take 40 years for the substance to decay to half the original amount. D. It will take 5,622 years for the substance to decay to half the original amount.
Write an equation to describe the situation.Alan's dog weighs 21 lb which is 
of Alan's weight w.
A. 2w = 21
B. 
= 21
C. w = 
? 21
D. 21w = 