Use the Laws of Exponents to simplify. Write the answer with positive exponents. All variables are nonzero.57 ? 5-5
A. 25
B. -535
C. -175
D. 
Answer: A
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Use identities to simplify the expression.
A. -cos x B. sin2 x C. cos2 x D. -sin x
Find the indicated sum.
+ 
+ 
+ 
+ ... + 
A. 3276.4 B. 6553.4 C. 3276.6 D. 6553.2
Solve the problem.A cancer patient undergoing chemotherapy is injected with a particular drug. The function 
gives the number of milligrams D of this drug that is in the patient's bloodstream h hours after the drug has been administered. How many milligrams of the drug were injected? To the nearest milligram, how much of the drug will be present after 2 hours?
Fill in the blank(s) with the appropriate word(s).
State the degree of the polynomial and whether it is a monomial, a binomial, or a trinomial.-15x
A. monomial, degree 0 B. binomial, degree 0 C. monomial, degree 1 D. monomial, degree -15