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1. |
Choose a tens digit for 2?6 so that the three-digit number is divisible by 6. |
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A. |
1 |
B. |
0 |
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C. |
3 |
D. |
2 |
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Hint |
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2. |
Factor 144 completely. |
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A. |
4 · 4 · 9 |
B. |
12 · 12 |
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C. |
3 · 3 · 4 · 4 |
D. |
2 · 2 · 2 · 2 · 3 · 3 |
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Hint |
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3. |
Which fraction can be expressed as in simplest form? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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4. |
Simplify  |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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5. |
Write 3,458,000 in scientific notation. |
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A. |
3458 × 103 |
B. |
0.3458 × 106 |
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C. |
3.458 × 103 |
D. |
3.458 × 106 |
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Hint |
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6. |
The number 250 is divisible by which number(s) from the following list? 2, 3, 5, 6, or 10 |
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A. |
All of 2, 3, 5, 6, and 10 |
B. |
5 and 10 only |
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C. |
2, 5, and 10 only |
D. |
2, 3, and 6 only |
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Hint |
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7. |
Evaluate 7(a – b)3 if a = 3 and b = 1. |
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A. |
8 |
B. |
28 |
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C. |
42 |
D. |
56 |
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Hint |
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8. |
Evaluate x5 - 13 if x = -2. |
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A. |
3 |
B. |
-45 |
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C. |
-23 |
D. |
19 |
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Hint |
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9. |
Factor –15x2. |
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A. |
-1 · 3 · 5 · x · x |
B. |
-1 · 3 · 5 · x2 |
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C. |
3 · 5 · x · x |
D. |
3 · 5 · x2 |
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Hint |
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10. |
Factor 7x + 21. |
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A. |
7(x + 3) |
B. |
x(7 + 21) |
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C. |
7(x + 21) |
D. |
7x(1 + 21) |
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Hint |
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11. |
The area of a rectangle can be written by the expression 24x4+ 18x3. Find a set of possible dimensions for this rectangle. |
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A. |
6x3 by 4x + 3 |
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B. |
3 by 8x3 + 6x3 |
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C. |
2x4by 12 + 9x |
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D. |
24x3 by x + 18 |
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Hint |
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12. |
Find x7 · x4. |
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A. |
xx11 |
B. |
x11 |
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C. |
xx28 |
D. |
x28 |
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Hint |
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13. |
Find (-3y3)(4y2). |
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A. |
12y6 |
B. |
-12y5 |
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C. |
-12y6 |
D. |
12y5 |
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Hint |
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14. |
Write the expression 5-4 using a positive exponent. |
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A. |
 |
B. |
-54 |
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C. |
54 |
D. |
 |
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Hint |
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15. |
Evaluate y-5 if y = -2. |
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A. |
32 |
B. |
 |
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C. |
-32 |
D. |
 |
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Hint |
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16. |
Express 1,000,000 in scientific notation. |
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A. |
1 × 107 |
B. |
1 × 106 |
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C. |
1 × 10-6 |
D. |
1 × 105 |
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Hint |
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