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1. |
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. |
1.6 m |
B. |
1.4 m |
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C. |
1.5 m |
D. |
1.7 m |
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Hint |
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2. |
Suppose you are in a building and your eyes are 1,000 feet above the ground. The distance you can see to the horizon is  where h represents the height your eyes are from the ground in feet and d is the distance in miles. About how far can you see to the horizon if you estimate  to the nearest whole number? |
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A. |
about 37 miles |
B. |
about 36 miles |
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C. |
about 39 miles |
D. |
about 38 miles |
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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. |
46 miles per hour |
B. |
48 miles per hour |
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C. |
42 miles per hour |
D. |
44 miles per hour |
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Hint |
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4. |
Let R = real numbers, Q = rational numbers, Z = integers, W = whole numbers, and I = irrational numbers. Name the set or sets of numbers to which  belongs. |
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A. |
Z, Q, R |
B. |
I, R |
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C. |
Z, I, R |
D. |
W, Q, R |
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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. |
Yes, because 52 + 62 = 82. |
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B. |
No, because 8 + 6 < 5. |
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C. |
Yes, because 5 + 6 > 8. |
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D. |
No, because 52 + 62  82. |
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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. |
9-12-15 |
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C. |
10-24-26 |
D. |
6-8-9 |
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Hint |
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7. |
Determine whether the number  is rational or irrational. |
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A. |
Neither |
B. |
Rational |
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C. |
Both |
D. |
Irrational |
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Hint |
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8. |
A 9-foot ladder is placed 4 feet from the base of a building. How high does the ladder reach? |
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A. |
about 9.8 feet |
B. |
about 8.1 feet |
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C. |
about 7 feet |
D. |
about 5 feet |
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Hint |
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9. |
Find the distance between the points (-7, -10) and (-5, -1). |
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A. |
7 units |
B. |
8.8 units |
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C. |
9.2 units |
D. |
5.5 units |
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Hint |
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10. |
How far apart are (-6, 11) and (4, 5) on the coordinate plane? |
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A. |
9.4 units |
B. |
16 units |
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C. |
11.7 units |
D. |
8 units |
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Hint |
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11. |
Find  . |
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A. |
15 |
B. |
-25 |
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C. |
-15 |
D. |
25 |
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Hint |
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12. |
A guy wire is attached to a pole. It is anchored to the ground 5 feet from the base of the pole. If the wire is 18 feet long, how high is the wire attached to the pole? |
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A. |
13 feet |
B. |
16.8 feet |
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C. |
17.3 feet |
D. |
18.7 feet |
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Hint |
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