Compute the compound interest.$5000 is invested at 9% compounded quarterly. In how many years will the account have grown to $10,500? Round to the nearest tenth of a year.
A. 8.3 yr
B. 8.6 yr
C. 12.1 yr
D. 1.1 yr
Answer: A
Mathematics
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Find numbers a and b, or k, so that f is continuous at every point.
A. a = 8, b = 85 B. a = -27, b = 45 C. a = 8, b = 5 D. Impossible
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Find the quotient
÷ 
A. - 
B. -14
C. - 
D. - 
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Multiply and simplify any radicals in your answer. Assume that all variables represent positive real numbers.(
+ 
)(
- 
)
A. 
+ 
- 
+ 19
B. 
+ 
+ 
- 19
C. 
+ 
- 
- 19
D. 
+ 
+ 
+ 19
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Solve the equation. If the solutions involve square roots, give both the exact solutions and the approximate solutions to three decimal places.
= 
A. 
? 1.414
B. -6
C. 6
D. 0
Mathematics