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1. |
 is _____. |
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A. |
a whole number |
B. |
a rational number |
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C. |
an integer |
D. |
an integer and rational number |
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Hint |
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2. |
Solve the equation x2 = 0.81. |
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A. |
none of these is correct |
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B. |
x = -0.9 only |
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C. |
x = 0.9 only |
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D. |
x = 0.9 or x = -0.9 |
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Hint |
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3. |
Estimate the area of the triangular piece of land using Heron's formula. |
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A. |
10 square miles |
B. |
9 square miles |
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C. |
12 square miles |
D. |
11 square miles |
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Hint |
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4. |
The distance you can see to the horizon can be estimated by using the formula  . In the formula, d represents the distance you can see in miles, and h represents the height your eyes are from the ground in feet. Suppose when you are standing on the ground your eyes are about 4.1 feet above ground level. About how far can you see to the horizon? |
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A. |
1.22 miles |
B. |
9.76 miles |
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C. |
4.88 miles |
D. |
2.47 miles |
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Hint |
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5. |
A 14-foot ladder that is placed 5 feet from the base of the vertical rock wall just reaches the top of the entrance of the cave. How high is the cave entrance above the ground? |
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A. |
about 13.1 feet |
B. |
about 14.9 feet |
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C. |
about 6.2 feet |
D. |
about 9 feet |
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Hint |
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6. |
Graph the ordered pairs (4, 0) and (7, 4). Then find the distance between the points. |
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A. |
2.6 units apart |
B. |
4 units apart |
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C. |
3 units apart |
D. |
5 units apart |
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Hint |
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7. |
A triangle on the coordinate plane has vertices A(0, 0), B(0, 5), and
C(7, 0). Determine the perimeter of the triangle to the nearest tenth. |
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A. |
8.6 units |
B. |
15.6 units |
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C. |
20.6 units |
D. |
13.6 units |
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Hint |
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8. |
In a right triangle, a = 14.2 cm and b = 13.9 cm. Find c. Round to the nearest tenth. |
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A. |
c = 19.9 cm |
B. |
c = 14.1 cm |
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C. |
c = 0.3 cm |
D. |
c = 2.9 cm |
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Hint |
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9. |
In a right triangle, b = 7.1 units and c = 11.3 units. Find a. Round to the nearest tenth. |
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A. |
a = 8.8 units |
B. |
a = 13.3 units |
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C. |
a = 4.2 units |
D. |
a = 8.4 units |
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Hint |
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10. |
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 11.2 feet |
B. |
about 5 feet |
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C. |
about 25 feet |
D. |
about 18 feet |
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Hint |
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11. |
Find  . |
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A. |
-25 |
B. |
-15 |
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C. |
25 |
D. |
15 |
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Hint |
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12. |
Graph - on a number line. |
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A. |
 |
B. |
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C. |
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D. |
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Hint |
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