Solve the problem.Express tan 4x in terms of tan x.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Find f(x) and g(x) such that h(x) = (f ? g)(x). Answers may vary.h(x) = 
A. f(x) = 
, g(x) = x2 - 3
B. f(x) = 
, g(x) = x - 3
C. f(x) = 
, g(x) = x2 - 3
D. f(x) = 
, g(x) = - 
Mathematics
Solve the problem.The amount of alcohol in the bloodstream, A, declines at a rate proportional to the amount, that is, 
. If 
for a particular person, how long will it take for his alcohol concentration to decrease from 0.10% to 0.05%? Give your answer to the nearest tenth of an hour.
A. 2.6 hr B. 1.7 hr C. 0.3 hr D. 3.5 hr
Mathematics
Simplify.
A. 1
B. 
C. 0
D. -1
Mathematics
Solve the system by substitution. 0.05x + 0.06y = 0.03-0.05x + y = 3.15
A. ? B. {(3, -3)} C. {(-0.3, 0.3)} D. {(-3, 3)}
Mathematics