Find the inverse of the function.f(x) = 7x2 + 7, x ? 0
A. f-1(x) = 
B. Not a one-to-one function
C. f-1(x) = 
D. f-1(x) = 
Answer: C
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Multiply the polynomials. Express the answer as a single polynomial in standard form.(3x - 4y)2
A. 3x2 - 24xy + 16y2 B. 3x2 + 16y2 C. 9x2 + 16y2 D. 9x2 - 24xy + 16y2
Solve the problem.A mathematics professor wishes to select from among 15 different textbooks, each having four different possible computer software packages, with two versions each to accommodate two computer brands available. How many different options does the professor have?
Fill in the blank(s) with the appropriate word(s).
You manage a small antique store that owns a collection of Louis XVI jewelry boxes. Their value v is increasing according to the formula
?
?
where t is the number of years from now. You anticipate an inflation rate of 1% per year, so that the present value of an item that will be worth $v in t years' time is given by
?
?
In how many years from now will the greatest rate of increase of the present value of your antiques be attained? Round your answer to two decimal places.
?
A. t = 24.55 years
B. t = 3.07 years
C. t = 11.27 years
D. t = 12.27 years
E. t = 6.14 years
Express in standard notation.6(cos 330° + i sin 330°)
A. -3
+ 3i
B. 3
- 3i
C. -3
- 3i
D. 3
+ 3i