Determine a formula for the exponential function.
A. f(x) = 20.25 ? 1.33x
B. f(x) = 13.5 ? 1.5x
C. f(x) = 9 ? 0.5x
D. f(x) = 20.25 ? 1.5x
Answer: D
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The concentration D of a drug, in milligrams per deciliter, in the blood t hours after an injection is given by 
. What is the eventual concentration of the drug in the blood?
A. About 4.07 milligrams per deciliter B. About 8.68 milligrams per deciliter C. About 4.61 milligrams per deciliter D. 0 milligrams per deciliter
Solve the problem. Express the answer in scientific notation to two decimals unless requested otherwise.The median family income in a certain year was $46,676 and there were about 7.2 × 107 families. Calculate the total family income for that year.
A. $336 × 1012 B. $2 × 1012 C. $3.36 × 1012 D. $3.36 × 10-12
Simplify the expression using the power rule.(y6)5
A. y30 B. 5y30 C. y11 D. 5y6
The following while loop is annotated with a pre- and post-condition and also a loop invariant. Use the loop invariant theorem to prove the correctness of the loop with respect to the preand post-conditions.
