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1. |
In 1960, Chile experienced the largest earthquake of the century. The magnitude was 9.5 on the Richter scale. In 1952, Ecuador had the fourth largest earthquake. The magnitude was 0.7 less than the earthquake in Chile. What was the magnitude of the earthquake in Ecuador? |
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A. |
8.8 |
B. |
11.2 |
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C. |
7.8 |
D. |
10.2 |
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Hint |
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2. |
A solution set that has no members is called the _______. |
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A. |
replacement set |
B. |
zero set |
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C. |
variable set |
D. |
empty set |
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Hint |
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3. |
When you multiply a number and its multiplicative inverse, or reciprocal, the product is ______. |
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A. |
0 |
B. |
-1 |
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C. |
1 |
D. |
the number itself |
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Hint |
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4. |
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A. |
Division Property of Equality |
B. |
Inverse Property of Rational Numbers |
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C. |
Multiplication Property of Equality |
D. |
Reciprocal Property of Fractions |
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Hint |
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5. |
Suppose you open a savings account that earns 4.5% annual interest. You want to earn at least $135 in interest after 4 years. How much money should you invest in order to earn $135 in interest? |
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A. |
$7.50 |
B. |
$750 |
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C. |
$7500 |
D. |
$3750 |
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Hint |
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6. |
Write the pointslope form of an equation for the line passing through
(2, 5) with slope  |
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A. |
 |
B. |
 |
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C. |
 |
D. |
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Hint |
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7. |
The expression 3 · 3 · 3 · 3 can be written using exponents as _____. |
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A. |
4(3) |
B. |
43 |
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C. |
3(4) |
D. |
34 |
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Hint |
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8. |
A whole number that has exactly two factors, the number itself and 1, 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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9. |
Refer to the diagram. A city park will use a portion of the park for a garden. The shaded region will be the area of the park without the garden. Express the area of the shaded region in factored form. |
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A. |
2(x2 2x 15) |
B. |
2(x 3)(x + 5) |
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C. |
(x + 3)(x 5) |
D. |
2(x + 3)(x 5) |
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Hint |
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10. |
Which diagram shows a correct factorization for 3x2 + 22x + 24? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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11. |
The roots of the quadratic equation 2x2 + 4x 30 = 0 are ___________. |
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A. |
3 and 5 |
B. |
3 and 5 |
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C. |
3 and 5 |
D. |
3 and 5 |
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Hint |
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12. |
Which trinomial is not a perfect square? |
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A. |
x2 + 14x + 49 |
B. |
x2 + 4x + 4 |
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C. |
x2 + 2x + 1 |
D. |
x2 + 9x + 18 |
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Hint |
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13. |
Which graph represents an exponential function? |
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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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14. |
Solve the system y = x 1 and 3x y = 7. |
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A. |
(-3, -2) |
B. |
(2, 3) |
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C. |
(2, 1) |
D. |
(3, 2) |
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Hint |
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15. |
Evaluate |2|. |
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A. |
2 |
B. |
-4 |
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C. |
4 |
D. |
-2 |
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Hint |
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16. |
Which equation does the model represent? |
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A. |
x + 4 = -7 |
B. |
x + 7 = -4 |
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C. |
x + (-7) = 4 |
D. |
x + (-4) = 7 |
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Hint |
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17. |
Solve the equation 5 + 7(n 3) = -2. |
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A. |
n = 2 |
B. |
n =  |
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C. |
n =  |
D. |
n = -3 |
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Hint |
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18. |
The relation is ___________. |
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A. |
not a function because it does not pass the horizontal line test |
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B. |
not a function because it does not pass the vertical line test |
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C. |
a function because it passes the horizontal line test |
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D. |
a function because it passes the vertical line test |
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Hint |
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19. |
Express 8 micrograms in scientific notation. |
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A. |
8 × 106 grams |
B. |
8 × 10-9 grams |
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C. |
8 × 109 grams |
D. |
8 × 10-6 grams |
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Hint |
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20. |
Find two numbers whose sum is 15 and whose product is 36. |
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A. |
3 and 12 |
B. |
6 and 9 |
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C. |
4 and 8 |
D. |
5 and 10 |
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Hint |
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