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1. |
Solve 52n+3 < 25. |
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A. |
 |
B. |
n > 1 |
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C. |
n < -1 |
D. |
 |
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Hint |
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2. |
Solve log4 x = 3 |
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A. |
16 |
B. |
12 |
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C. |
81 |
D. |
64 |
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Hint |
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3. |
Solve log3 (x + 4) - log3 (x - 2) = 2 log3 2. |
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A. |
4 |
B. |
8 |
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C. |
6 |
D. |
9 |
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Hint |
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4. |
Finance If $500 is deposited in an account paying 5.25% interest compounded continuously, find the amount in the account after 3 years. |
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A. |
$427.14 |
B. |
$616.84 |
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C. |
$555.36 |
D. |
$585.29 |
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Hint |
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5. |
Solve 4x = 22 to three decimal places. |
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A. |
2.230 |
B. |
3.414 |
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C. |
3.961 |
D. |
5.500 |
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Hint |
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6. |
Solve 32x -1 = 25.6 to three decimal places. |
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A. |
1.204 |
B. |
4.767 |
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C. |
0.739 |
D. |
1.976 |
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Hint |
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7. |
Real Estate Julie bought a house for $100,000 five years ago. If the value of the house has appreciated 5% per year, how much is it worth now? |
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A. |
$127,628.16 |
B. |
$77,378.09 |
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C. |
$119,643.57 |
D. |
$125,000.00 |
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Hint |
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8. |
The number of bacteria in a culture grew exponentially. When the experiment began, there were 100,000. Ten minutes later, that number grew to 220,000. Which of the following equations could be used to model this situation? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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9. |
Solve log 3 x < 4. Check your solution. |
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A. |
x < 81 |
B. |
0 < x < 81 |
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C. |
0 < x < 64 |
D. |
x < 64 |
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Hint |
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10. |
Given that log 8 10  1.11 and log 8 60 1.97, find log 8 6. |
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A. |
1.77 |
B. |
0.86 |
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C. |
1.16 |
D. |
3.08 |
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Hint |
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11. |
What is an equivalent logarithmic equation to ex = 7? |
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A. |
7 = ln e |
B. |
ex = ln 7 |
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C. |
ln x = 7 |
D. |
x = ln 7 |
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Hint |
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12. |
A Mickey Mantle rookie card appreciates in value 2% every year. How much was it worth in 1990 if it is worth $35,000 in 2000? |
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A. |
$216,711 |
B. |
$28, 712 |
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C. |
$42,665 |
D. |
$5653 |
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Hint |
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