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1. |
Simplify 3(2a + b) + 6(a - 2b). |
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A. |
12a + 9b |
B. |
12a - 9b |
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C. |
12a + 15b |
D. |
12a + b |
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Hint |
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2. |
State an absolute value inequality for ''all numbers less than or equal to 8, and greater than or equal to -8.'' |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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3. |
If f(x) = [2x - 1], find f(5.4). |
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A. |
8 |
B. |
10 |
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C. |
9.8 |
D. |
9 |
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Hint |
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4. |
Solve the system of equations. 
|
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A. |
(0, -2, 7) |
B. |
(1, 1, 2) |
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C. |
infinite number of solutions |
D. |
no solution |
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Hint |
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5. |
Find the determinant of  |
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A. |
-11 |
B. |
-21 |
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C. |
-16 |
D. |
0 |
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Hint |
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6. |
Find the axis of symmetry of the graph of f(x) = 4x2 -4x + 4. |
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A. |
y = 3 |
B. |
x = 4 |
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C. |
x = 2 |
D. |
x =  |
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Hint |
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7. |
Which is not a root of z3 + 8 = 0? |
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A. |
2 |
B. |
 |
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C. |
 |
D. |
-2 |
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Hint |
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8. |
If f(x) = 2x and g(x) = x + 4, find  |
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A. |
-1 |
B. |
13 |
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C. |
7 |
D. |
1 |
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Hint |
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9. |
Real Estate Julie bought a house for $100,000 five years ago. If the value of the house has appreciated 5% per year, how much is it worth now? |
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A. |
$125,000.00 |
B. |
$127,628.16 |
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C. |
$77,378.09 |
D. |
$119,643.57 |
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Hint |
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10. |
 |
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A. |
–7 + 8 + (-9) + 10; 2 |
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B. |
7 + 8 + 9 + 10; 34 |
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C. |
–7 + (-8) + (-9) + (-10); -34 |
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D. |
7 – 8 + 9 – 10; -2 |
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Hint |
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11. |
According to a survey of randomly selected adults who exercise regularly, 62% of the group said they run 40 minutes, 3 times a week. If the margin of error was 2%, how many people were surveyed? |
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A. |
2356 |
B. |
9424 |
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C. |
1178 |
D. |
380 |
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Hint |
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12. |
A school flagpole casts a 16-foot shadow on the lawn. A teacher stood at the shadow's edge and measured the angle of elevation to the top of the pole at 42°. How tall is the pole? |
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A. |
5.6 ft |
B. |
14.4 ft |
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C. |
12 ft |
D. |
17.8 ft |
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Hint |
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13. |
Evaluate z – (2yz + y) · y if y = -3 and z = 2. |
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A. |
-43 |
B. |
9 |
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C. |
47 |
D. |
23 |
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Hint |
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14. |
Write the equation of the line through (5, -3) and (-2, -8) in slope-intercept form. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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15. |
Solve the system of equations4x – 2y = 2, –3x + 7y = –29 |
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A. |
no solution |
B. |
(2, –5) |
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C. |
(–2, –5) |
D. |
(–2, 5) |
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Hint |
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16. |
Simplify:  |
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A. |
 |
B. |
no real roots |
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C. |
-16 |
D. |
16 |
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Hint |
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17. |
The volume of a refrigerator is  . Its height is x + 2. What are the other two dimensions? |
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A. |
x + 6 and x – 1 |
B. |
x – 3 and x + 2 |
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C. |
x – 2 and x + 3 |
D. |
x – 6 and x + 1 |
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Hint |
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18. |
If f(7) = 12 and g(2) = 7, then what is the value of  ? |
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A. |
7 |
B. |
84 |
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C. |
12 |
D. |
2 |
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Hint |
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19. |
Which of the following is not a geometric sequence? |
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A. |
1, 4, 16, 64 |
B. |
6, 4 , 3, 1 , … |
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C. |
4, 2, 1, , … |
D. |
3, 6, 12, 24, … |
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Hint |
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20. |
What method should be used when we have one side and one angle opposite that side? |
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A. |
law of sines |
B. |
cannot be determined from given information |
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C. |
law of cosines only |
D. |
law of cosines, then law of sines |
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Hint |
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