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1. |
Write  using negative exponents. |
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A. |
2-4 |
B. |
2-3 |
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C. |
-2-4 |
D. |
-24 |
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Hint |
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2. |
Does the number triple 5, 6, and 8 represent the lengths of sides of a right triangle? Explain. |
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A. |
Yes, because 5 + 6 > 8. |
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B. |
No, because 52 + 62  82. |
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C. |
No, because 8 + 6 < 5. |
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D. |
Yes, because 52 + 62 = 82. |
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Hint |
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3. |
A circle with a diameter of 12 centimeters is inscribed in a square. To the nearest centimeter, what is the length of the diagonal of the square? |
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A. |
12 centimeters |
B. |
17 centimeters |
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C. |
6 centimeters |
D. |
14 centimeters |
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Hint |
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4. |
Find –2 + (–4). |
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A. |
2 |
B. |
6 |
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C. |
–2 |
D. |
–6 |
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Hint |
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5. |
Find 4 + (–5). |
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A. |
1 |
B. |
9 |
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C. |
–9 |
D. |
–1 |
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Hint |
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6. |
Find 2(–8). |
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A. |
8 |
B. |
–32 |
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C. |
16 |
D. |
–16 |
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Hint |
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7. |
Find –36 ÷ (–4). |
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A. |
–4 |
B. |
9 |
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C. |
–18 |
D. |
6 |
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Hint |
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8. |
Simplify (3x3)4. |
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A. |
3x7 |
B. |
27x7 |
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C. |
12x12 |
D. |
81x12 |
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Hint |
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9. |
The graph of the Celsius-Kelvin temperature conversion formula, K = C + 273, is shown below. For which temperatures are the Kelvin and Celsius temperatures both positive? |
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A. |
temperatures greater than –273 K |
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B. |
temperatures greater than 0°C |
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C. |
temperatures greater than 0 K |
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D. |
temperatures less than 150°C |
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Hint |
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10. |
The graph of the Celsius-Kelvin temperature conversion formula, K = C + 273, is shown below. For which temperatures are the Kelvin temperatures positive and the Celsius temperatures negative? |
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A. |
temperatures between 0°C and 100°C |
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B. |
temperatures greater than –100°C |
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C. |
temperatures greater than 273 K |
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D. |
temperatures between 0 K and 273 K |
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Hint |
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