Perform the indicated operation using the standard form.
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Answer: A
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Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator.log5
A. 3log5x + 6log5y
B. 6log5y - 3log5x
C. 3log5x - 6log5y
D. 
log5
Simplify the expression by using the order of operations.2 ? 6 + 2(7 + 3) + 4
A. 33 B. 40 C. 36 D. 164
The concentration (in milligrams/cubic centimeter) of a certain drug in a patient's body t hr after injection is given by
?
interval where 
is decreasing.
?
When is the concentration of the drug increasing and when is it decreasing?
?
A. Increasing on 
B. Increasing on 
and decreasing on 
C. Decreasing on 
D. The concentration of the drug is constant.
For the pair of functions, find the indicated sum, difference, product, or quotient.Let f(x) = x + 2 and g(x) = x - 6. Find (f + g)(-1).
A. 6 B. 2 C. -6 D. -10