Solve the problem.The number of quarters needed to double an investment when a lump sum is invested at 4%, compounded quarterly, is given by n = 
. In how many years will the investment double, to the nearest tenth of a year?
A. 8.7 yr
B. 34.8 yr
C. 69.7 yr
D. 17.4 yr
Answer: D
Mathematics
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Write the first five terms of the sequence {an}.a1 = 3, an + 1 = -an
A. 3, 0, -3, -6, -9 B. -3, 3, -3, 3, -3 C. 3, -9, 27, -81, 243 D. 3, -3, 3, -3, 3
Mathematics
State the domain of the rational expression.
A. {x
- 
, 1}
B. {x
-5, 5}
C. {x
-1, 
}
D. {x
-5, -1, 
, 5}
Mathematics
Factor completely. If unfactorable, indicate that the polynomial is prime.x2 - 8x + 64
A. (x + 8)(x - 8) B. prime C. (x - 8)2 D. (x + 8)2
Mathematics
Estimate the sum or difference by rounding each number to the nearest ten.
A. 267 B. 280 C. 300 D. 270
Mathematics