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1. |
Name the property of equality shown by the statement: If 2 + 10 = 12 and 12 = 3(4), then 2 + 10 = 3(4). |
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A. |
Additive Property of Equality |
B. |
Symmetric Property of Equality |
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C. |
Transitive Property of Equality |
D. |
Reflexive Property of Equality |
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Hint |
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2. |
The sum of any number and its additive inverse is _____. |
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A. |
always positive |
B. |
always -1 |
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C. |
always 0 |
D. |
always negative |
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Hint |
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3. |
Find the difference -8 - (-2). |
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A. |
-6 |
B. |
-10 |
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C. |
6 |
D. |
10 |
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Hint |
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4. |
Ten test scores from Mrs. McDaniel's mathematics class are 100, 95, 93, 86, 82, 80, 78, 77, 75, and 75. She calculates the mean, median, and mode of the scores. An eleventh student takes the test with a score of 62. Mrs. McDaniel recalculates the mean, median, and mode of the test scores. Which measure changes the most when the eleventh score is included? |
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A. |
median |
B. |
mode |
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C. |
mean |
D. |
The mean, median, and mode change equally. |
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Hint |
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5. |
The area of a parallelogram can be found by using the formula A = bh, where b is the length of the base and h is the height of the parallelogram. The area of a parallelogram is 23.56 square inches. What is the height if the length of the base is 6.2 inches? |
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A. |
1.9 inches |
B. |
146.072 inches |
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C. |
7.6 inches |
D. |
3.8 inches |
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Hint |
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6. |
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. |
$7500 |
B. |
$7.50 |
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C. |
$750 |
D. |
$3750 |
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Hint |
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7. |
The relation {(4, 6), (6, 1), (10, 2), (5, -1), (10, -2), (2, 6)} is _______. |
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A. |
not a function, because the domain value 10 is paired with more than one element of the range |
B. |
a function, because each element of the domain is paired with exactly one element of the range |
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C. |
not a function, because the range value 6 is paired with more than one element of the domain |
D. |
a function, because all of the elements of the domain are positive |
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Hint |
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8. |
The cost of a container of building staples varies directly as the weight in pounds. Suppose 2 pounds of staples costs $3.60. What is the cost of 5 pounds of staples? |
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A. |
$35.00 |
B. |
$1.40 |
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C. |
$5.25 |
D. |
$9.00 |
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Hint |
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9. |
Refer to the diagram below. Find the area of the shaded region in simplest form. |
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A. |
3x2 + 42x |
B. |
3x2 + 7x |
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C. |
3x2 + 42 |
D. |
3x2 + 7 |
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Hint |
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10. |
The roots of a quadratic equation can be found by finding the __________ of the related quadratic function. |
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A. |
equation of the axis of symmetry |
B. |
vertex |
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C. |
y-intercepts |
D. |
x-intercepts |
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Hint |
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11. |
Raul spent $30.00 in a period of 6 days. What was the average change in the amount of money he had each day? |
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A. |
-$36.00 |
B. |
$5.00 |
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C. |
-$5.00 |
D. |
$36.00 |
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Hint |
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12. |
Jessica was hanging out at home with her dog Chelsea, who was looking out the window. She noticed that Chelsea barked 5 times when a squirrel walked by, 12 times when a woman walked by, 14 times when a man walked by, 10 times when a dog walked by, and 3 times when a leaf blew by. What was the mean, or average, number of times Chelsea barked when something passed the window? |
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A. |
11.2 barks |
B. |
8.8 barks |
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C. |
14.6 barks |
D. |
9.5 barks |
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Hint |
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13. |
The product of two rational numbers with the same sign is ______. |
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A. |
always negative |
B. |
negative or positive depending upon the rational numbers that are factors |
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C. |
always -1 |
D. |
always positive |
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Hint |
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14. |
Find the quotient -9.3 ÷ -3. |
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A. |
-27.9 |
B. |
3.1 |
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C. |
-3.1 |
D. |
27.9 |
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Hint |
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15. |
Solve the equation  - 4 = 8. |
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A. |
g = -72 |
B. |
g = -24 |
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C. |
g = - |
D. |
g = -2 |
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Hint |
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16. |
The graph shows the distribution of eye color at Moby High School. If you randomly meet a student from the school, what is the probability of he or she having blue or green eyes, to the nearest percent? |
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A. |
9% |
B. |
65% |
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C. |
14% |
D. |
30% |
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Hint |
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17. |
Suppose y varies directly as x and y = -10 when x = 5. Find x when
y = 40. |
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A. |
-20 |
B. |
10 |
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C. |
-10 |
D. |
20 |
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Hint |
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18. |
State whether the expression 9x7 + 4x4 – 3x is a monomial, binomial, trinomial or not a polynomial. |
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A. |
not a polynomial |
B. |
binomial |
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C. |
monomial |
D. |
trinomial |
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Hint |
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19. |
Solve (t – 1)(5t + 2). |
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A. |
t = 1, t =  |
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B. |
t = -1, t =  |
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C. |
t = 1, t =  |
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D. |
t = -1, t =  |
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Hint |
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20. |
Paco is playing volleyball with his friends. He hits the ball over the net. The formula for the ball's height is h(t) = -4.9t2 +14t + 1 Find the amount of time, t, the volleyball will travel if it is not hit. |
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A. |
3.56 seconds |
B. |
0.07 seconds |
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C. |
2.93 seconds |
D. |
0.12 seconds |
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Hint |
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