Add the polynomials.(-1 + 3x6 + 7x8 - 5x7) + (-6x7 - 8x6 - 4 + 3x8)
A. 10x8 - 11x7 - 5x6 - 5
B. -6x42 - 5
C. -7x8 - 7x7 + 3x6 - 2
D. 10x16 - 11x14 - 5x12 - 5
Answer: A
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The function f is one-to-one. Find its inverse.f(x) =
A. f-1(x) = x - 3
B. f-1(x) = x3 + 9
C. f-1(x) = 
D. f-1(x) = x3 - 3
Perform the indicated operations.
- 
A. 
B. 
C. 
D. - 
Becky Wilkinson wants to establish a trust fund that will provide her children and heirs with a perpetual annuity in the amount of
?
?
thousand dollars per year beginning next year. If the trust fund will earn an interest rate of 10% per year compounded continuously, find the amount that she must place in the trust fund now.
?
Hint: Use the formula 
.
?
A. $350,000
B. ?$290,000
C. ?$380,000
D. ?$370,000
E. ?$400,000
Estimate the result of the calculation. Use your estimate to determine if the result appears to be correct or incorrect.
A. Correct. Estimate: 300,000 B. Incorrect. Estimate: 600,000 C. Incorrect. Estimate: 400,000 D. Incorrect. Estimate: 500,000