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1. |
Find  . |
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A. |
15 |
B. |
14 |
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C. |
-14 |
D. |
-15 |
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Hint |
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2. |
If the area of a square is 2.89 square meters, what is the length of each of its sides. |
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A. |
1.4 m |
B. |
1.5 m |
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C. |
1.6 m |
D. |
1.7 m |
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Hint |
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3. |
The formula  gives the minimum speed s of a car in miles per hour, where d is the distance in feet the car skidded after its brakes were applied and f is a drag factor that depends on the road surface. A car left skid marks for 80 feet on a dry, concrete road surface with a drag factor of 0.82. Find the minimum speed to the nearest mile per hour. |
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A. |
44 miles per hour |
B. |
42 miles per hour |
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C. |
48 miles per hour |
D. |
46 miles per hour |
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Hint |
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4. |
The hypotenuse of a right triangle is 38 meters long, and one of its legs is 15 meters long. Find the length of the other leg. |
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A. |
about 40.9 m |
B. |
about 46.4 m |
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C. |
about 52.9 m |
D. |
about 34.9 m |
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Hint |
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5. |
Does the number triple 5, 6, and 8 represent the lengths of sides of a right triangle? Explain. |
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A. |
No, because 52 + 62  82. |
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B. |
Yes, because 52 + 62 = 82. |
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C. |
No, because 8 + 6 < 5. |
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D. |
Yes, because 5 + 6 > 8. |
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Hint |
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6. |
Write a Pythagorean triple other than 3-4-5 that is in the 3-4-5 family. |
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A. |
5-12-13 |
B. |
10-24-26 |
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C. |
6-8-9 |
D. |
9-12-15 |
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Hint |
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7. |
A circle passes through the points A(2, 0), B(4, 2), C(6, 0), and
D(4, -2). Figure ABCD inside the circle is a square. Find the length of a side of the square to the nearest tenth. |
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A. |
4.2 units |
B. |
5.7 units |
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C. |
2 units |
D. |
2.8 units |
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Hint |
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8. |
Estimate  . |
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A. |
27 |
B. |
26 |
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C. |
24 |
D. |
25 |
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Hint |
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9. |
Determine whether  is rational or irrational. |
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A. |
Rational |
B. |
Irrational |
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C. |
Both |
D. |
Neither |
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Hint |
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10. |
Let R = real numbers, Q = rational number, Z = integers, W = whole numbers, and I = irrational numbers. Name the set(s) of numbers to which  belongs. |
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A. |
R, W |
B. |
R, Q |
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C. |
R, I |
D. |
R, Z |
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Hint |
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11. |
Maria has a rectangular garden with dimensions 10 feet by 15 feet. She plans to place a dividing fence along the diagonal of the garden. What will be the length of Maria's fence? |
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A. |
about 18 feet |
B. |
about 11.2 feet |
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C. |
about 5 feet |
D. |
about 25 feet |
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Hint |
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12. |
A unit on the grid of the map of City Zoo is 0.02 mile. Find the distance between the monkey exhibit at (-4, 4) and the lion exhibit at (2, -3). |
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A. |
0.18 mile |
B. |
9.22 miles |
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C. |
0.92 mile |
D. |
1.84 miles |
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Hint |
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