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1. |
In the expression 25, 5 is called the _____. |
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A. |
perfect square |
B. |
base |
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C. |
exponent |
D. |
square root |
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Hint |
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2. |
The expression 5 can be written using exponents as _____. |
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A. |
50 |
B. |
1(5) |
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C. |
15 |
D. |
51 |
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Hint |
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3. |
You can divide powers with the same base by _____. |
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A. |
adding the exponents |
B. |
multiplying the exponents |
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C. |
subtracting the exponents |
D. |
dividing the exponents |
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Hint |
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4. |
Simplify the expression c-1d. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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5. |
A whole number that has more than two factors is called a _____. |
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A. |
radical number |
B. |
composite number |
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C. |
prime number |
D. |
square number |
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Hint |
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6. |
To determine the speed of a vehicle involved in an accident, police officers use the formula  . In the formula, s is the speed in miles per hour, d is the length of the skid marks in feet, and f is the friction factor. Suppose for a particular accident d = 45 feet and f = 0.8. What was the approximate speed of the vehicle? |
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A. |
198 miles per hour |
B. |
84 miles per hour |
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C. |
33 miles per hour |
D. |
14 miles per hour |
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Hint |
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7. |
Which square root from the list below is closest to 14? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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8. |
Ilias wants to build a square pond for a fountain in his yard. He wants the area of the square to be as close as possible to 150 square feet, but not over 150 square feet. Find the length in whole feet of the largest square pond that he can build and still have the area be less than 150 square feet. |
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A. |
12 feet |
B. |
11 feet |
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C. |
13 feet |
D. |
11.5 feet |
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Hint |
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9. |
Refer to the diagram below. A square with a side length of 6 inches is shown. Find the length d of the diagonal. Round to the nearest tenth of an inch, if necessary. |
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A. |
17.0 in. |
B. |
6 in. |
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C. |
8.5 in. |
D. |
12 in. |
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Hint |
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10. |
Simplify the expression (jk)(2k)(3jk5). |
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A. |
6j2k5 |
B. |
6j3k7 |
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C. |
5j3k7 |
D. |
5j2k5 |
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Hint |
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11. |
The distance around the equator of Jupiter is approximately
4.49 × 108m, and a normal football field is about 1.1 × 102m long. About how many football fields could fit lengthwise across Jupiter's equator? |
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A. |
4,080,000 football fields |
B. |
408 football fields |
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C. |
408,000 football fields |
D. |
40,800,000,000 football fields |
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Hint |
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12. |
The rule for multiplying by powers of 10 states that if the exponent of the 10 is negative, then you move the decimal point __________. |
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A. |
to the right by the same number of spaces as the number in the exponent |
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B. |
to the right by the number of spaces as the number in the exponent minus 1 |
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C. |
to the right by the number of spaces as the number in the exponent plus 1 |
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D. |
to the left by the same number of spaces as the number in the exponent |
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Hint |
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13. |
Evaluate the expression 0.000008 × 17,000,000,000. |
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A. |
136 |
B. |
1,360,000 |
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C. |
13,600 |
D. |
136,000 |
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Hint |
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14. |
If c is the measure of the longest side of a triangle and c2 = a2 + b2, then ___________________. |
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A. |
the triangle is an isosceles triangle |
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B. |
the triangle is a right triangle |
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C. |
the triangle is not an isosceles triangle |
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D. |
the triangle is not a right triangle |
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Hint |
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