Solve the problem.How long, to the nearest tenth of a year, will it take for a $2800 investment to double if it is invested at 
compounded semiannually? Use the formula 
.
A. 13.8 yr
B. 14 yr
C. 14.2 yr
D. 14.4 yr
Answer: B
Mathematics
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Find 
for the given function.y = (
- 3)-3
A. - 
(
- 3)-4
B. - 
(
- 3)-5
C. 
(
- 3)-5
D. 6(
- 3)-5
Mathematics
Solve the problem.The accompanying figure shows the graph of y = -x2 shifted to a new position. Write the equation for the new graph.
A. y = -(x - 6)2 B. y = -x2 - 6 C. y = -(x + 6)2 D. y = -x2 + 6
Mathematics
Graph the line through the given point with the given slope.(-3, -8), m = 4
A. 
B. 
C. 
D. 
Mathematics
Suppose 500 coins are tossed. Using the normal curve approximation to the binomial distribution, find the probability of the indicated results.More than 262 heads
A. .131 B. .142 C. .871 D. .129
Mathematics