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1. |
Evaluate 7[32 - 2(1 + 2)] ÷ 7 + 52. |
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A. |
25 |
B. |
30 |
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C. |
26 |
D. |
28 |
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Hint |
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2. |
Solve  for g. |
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A. |
g =  |
B. |
1 |
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C. |
g =  |
D. |
g =  |
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Hint |
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3. |
What are the odds of choosing a red marble from a bag that contains 20 red marbles, 15 yellow marbles, and 35 green marbles? |
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A. |
2:7 |
B. |
2:5 |
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C. |
4:5 |
D. |
4:7 |
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Hint |
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4. |
If y varies directly as x and y = 35 when x = 5, find y when x = 11. |
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A. |
41 |
B. |
 |
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C. |
7 |
D. |
77 |
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Hint |
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5. |
Write the standard form of an equation of the line that passes through
(-2, 3) and has a slope of m = -3. |
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A. |
3x + y = 9 |
B. |
3x + y = -3 |
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C. |
y = -3x - 9 |
D. |
3x + y = -9 |
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Hint |
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6. |
What is the solution to the sentence ''A number decreased by -5 is at least 7''? |
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A. |
{x | x < 2} |
B. |
 |
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C. |
{x | x > 2} |
D. |
 |
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Hint |
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7. |
Solve |4x - 7| = 13. |
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A. |
{x | x = 5 or x = -5} |
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B. |
 |
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C. |
 |
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D. |
{x | x = 5} |
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Hint |
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8. |
What percent of the data is between 62 and 90 for Exam B? |
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A. |
25% |
B. |
100% |
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C. |
75% |
D. |
50% |
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Hint |
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9. |
 |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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10. |
Which scatter plot shows that x and y have a positive correlation? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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11. |
Use elimination to solve the system of equations given by 7x + 23y = 12 and 3x + 23y = -8. |
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A. |
infinitely many solutions |
B. |
 |
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C. |
(5, -1) |
D. |
no solution |
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Hint |
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12. |
A boat travels 30 miles upstream in 4 hours. The trip downstream takes 2.5 hours. Find the rate of the boat in still water. |
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A. |
9.23 mph |
B. |
9.75 mph |
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C. |
2.25 mph |
D. |
6.92 mph |
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Hint |
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13. |
City hall was conducting a survey concerning social issues. In order to take part, citizens had to pick up the forms at city hall. What kind of sample is this? |
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A. |
biased, convenience |
B. |
unbiased, random sample |
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C. |
unbiased, systematic random sample |
D. |
biased, voluntary |
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Hint |
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14. |
What is the value of (4.4 × 109)(3 × 10-5) in scientific notation? |
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A. |
1.5 × 104 |
B. |
1.32 × 104 |
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C. |
1.32 × 106 |
D. |
1.32 × 105 |
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Hint |
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15. |
Find (–2x2 + 5x – 1) – (3x2 – 4x – 6). |
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A. |
–5x2 + 9x + 5 |
B. |
–5x2 + x + 5 |
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C. |
–5x2 + x – 7 |
D. |
–5x2 + 9x – 7 |
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Hint |
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16. |
Solve x(x – 2) + 2x(x + 3) + 10 = 3x(x – 1) + 31. |
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A. |
x = –2 |
B. |
x = 4 |
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C. |
x = 3 |
D. |
x = 2 |
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Hint |
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17. |
Suppose that the sixth term of a geometric sequence is 1215, and the first term is 5. What is the second term? |
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A. |
8 |
B. |
12.5 |
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C. |
15 |
D. |
9 |
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Hint |
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18. |
Three houses are sharing their electricity. One house uses  W, another uses  W, and the final one uses  . How much total electricity are they using? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
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Hint |
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19. |
Libby looked out of her airplane window at a 32° angle with respect to the horizontal, and saw the Sears Tower building in Chicago. If the airplane had an altitude of 4000 feet, how far away were they from being directly over Chicago? |
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A. |
2499 ft. |
B. |
9900 ft. |
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C. |
1616 ft. |
D. |
6401 ft. |
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Hint |
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20. |
A certain rectangle has a length of  and a width of  . What is the perimeter of the rectangle? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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