Simplify the trigonometric expression by following the indicated direction.Rewrite in terms of sine and cosine: tan x ? cot x
Fill in the blank(s) with the appropriate word(s).
Answer: 1
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Use the power rule for exponents to simplify the expression. Write the answer in exponential form.(-24)3
A. (-2)12 B. 124 C. -64 D. (-2)7
Perform the indicated operation. Simplify the answer when possible.
+ 
A. 
B. 
C. 
D. 
Solve the problem.The amount of a certain drug in the bloodstream is modeled by the function 
, where y0 is the amount of the drug injected (in milligrams) and t is the elapsed time (in hours). Suppose that 10 milligrams are injected at 10:00 A.M. If a second injection is to be administered when there is 1 milligram of the drug present in the bloodstream, approximately when should the next dose be given? Express your answer to the nearest quarter hour.
A. 5:45 P.M B. 12:30 P.M C. 3:45 P.M D. 5: 30 P.M
Determine if the graph is symmetric with respect to x-axis, y-axis, and/or the origin.
A. x-axis B. y-axis, origin C. x-axis, y-axis D. y-axis