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1. |
Evaluate (16 - 4) ÷ 12 × 15. |
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A. |
 |
B. |
15 |
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C. |
 |
D. |
1 |
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Hint |
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2. |
If y varies directly as x and y = 35 when x = 5, find y when x = 11. |
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A. |
41 |
B. |
7 |
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C. |
77 |
D. |
 |
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Hint |
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3. |
What is the interquartile range of Exam A? |
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 |
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A. |
11 |
B. |
5 |
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C. |
35 |
D. |
16 |
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Hint |
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4. |
Graph the system of equations to determine whether it has no solution, infinitely many solutions, or one solution. If the system has one solution, name it.
2x - y = 4
x + 2 y = 2 |
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A. |
no solution |
B. |
one solution at (2, 0) |
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C. |
infinitely many solutions |
D. |
one solution at (0, 2) |
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Hint |
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5. |
Find (x - 4)2. |
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A. |
x2 - 8x + 16 |
B. |
x2 + 16 |
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C. |
x2 - 16 |
D. |
x2 - 4x + 16 |
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Hint |
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6. |
Find (3a + 4b)2 |
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A. |
9a2 + 24ab + 16b2 |
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B. |
9a2 + 16b2 |
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C. |
9a2 + 12ab + 16b2 |
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D. |
3a2 + 24ab + 4b2 |
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Hint |
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7. |
Factor 6y2 + 22y – 8. |
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A. |
2(3y – 2)(y + 2) |
B. |
(6y – 1)(y + 8) |
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C. |
(2y– 4)(3y + 2) |
D. |
2(3y – 1)(y + 4) |
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Hint |
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8. |
The equation x2 + 1 = -3x does not have integral roots. State the consecutive integers between which the roots lie. |
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A. |
between -1 and 0 and between 0 and 1 |
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B. |
between 0 and 1 and between 2 and 3 |
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C. |
between -3 and -2 and between 0 and 1 |
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D. |
between -3 and -2 and between -1 and 0 |
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Hint |
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9. |
State the excluded values of x in the expression  . |
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A. |
 |
B. |
 or - 3 |
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C. |
 , 3, or 4 |
D. |
or 3 |
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Hint |
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10. |
Find  . |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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11. |
The distance between the points with coordinates (-8, 4) and (1, a) is 15 units. Find the value of a. |
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A. |
8 or 16 |
B. |
-8 |
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C. |
8 |
D. |
-8 or 16 |
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Hint |
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12. |
Use the graph below to determine if the given system of equations has one solution, no solution, or infinitely many solutions. If the system has one solution, name it.
 |
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A. |
infinitely many solutions |
B. |
one solution at  |
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C. |
one solution at (-6, 0) |
D. |
no solution |
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Hint |
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13. |
Solve  |
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A. |
w = 835 |
B. |
w = 859 |
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C. |
w = -859 |
D. |
w = -835 |
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Hint |
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14. |
Everyone at the stadium is eligible for a drawing at the end of the night. If everyone was given a number, and 10 winners are announced, what kind of sample is this? |
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A. |
simple random sample |
B. |
voluntary response sample |
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C. |
stratified random sample |
D. |
systematic random sample |
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Hint |
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15. |
Which of the following frequencies occurs most often? |
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 |
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A. |
10 |
B. |
8 |
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C. |
12 |
D. |
14 |
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Hint |
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16. |
Find the lower quartile of the data. |
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 |
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A. |
2 |
B. |
42.5 |
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C. |
29.5 |
D. |
19.5 |
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Hint |
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17. |
Find 12!. |
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A. |
479,001,600 |
B. |
39,916,800 |
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C. |
78 |
D. |
6,227,020,800 |
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Hint |
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18. |
In baseball, a pop fly should be easily caught if it stays in the air for 7 seconds. Suppose a ball that is hit can be represented by the function y = –16t2 + 125t + 5, where y is the height after t seconds. Will the ball be considered an easy catch? |
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A. |
no, because t > 7 |
B. |
yes, because t < 7 |
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C. |
yes, because t > 7 |
D. |
no, because t < 7 |
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Hint |
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19. |
Use a graph in order to approximate  . |
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A. |
0.0089 |
B. |
0.0045 |
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C. |
133.4 |
D. |
112.6 |
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Hint |
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20. |
Determine the third side measure that will form a right triangle if two of the sides are 9 and 41. |
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A. |
27 |
B. |
does not exist |
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C. |
42 |
D. |
40 |
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Hint |
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