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1. |
Express 0.091 in scientific notation. |
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A. |
9.1 × 10-1 |
B. |
9.1 × 101 |
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C. |
9.1 × 102 |
D. |
9.1 × 10-2 |
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Hint |
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2. |
Simplify (-3a5b3)4. |
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A. |
81a20b12 |
B. |
-81a9b12 |
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C. |
-12a20b12 |
D. |
-12a9b7 |
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Hint |
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3. |
Factor 2r3 + 8r2 - 10r completely. |
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A. |
2r(r2 + 4r - 5) |
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B. |
2(r3 + 4r2 - 5r) |
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C. |
(2r - 1)(r + 5) |
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D. |
2r(r - 1)(r + 5) |
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Hint |
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4. |
 |
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A. |
x2 |
B. |
|x| |
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C. |
x |
D. |
|x5| |
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Hint |
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5. |
Which is the graph of 4x2 + 9y2 + 16x -18y -11 = 0? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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6. |
Solve the system of equations.
y = 2x + 3
y2 - x2 = 24 |
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A. |
(-5, -7), (1, 5) |
B. |
(5, 7) |
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C. |
(-5, -7), (1, -5) |
D. |
(0, 3) |
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Hint |
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7. |
Solve the equation w2 - 4w = 12 by graphing. |
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A. |
0, -3 |
B. |
-2, 6 |
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C. |
6 |
D. |
1, 4 |
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Hint |
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8. |
What is the polynomial function of least degree with integral coefficients that has zeros 2 and 3i? |
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A. |
y = x2 - 5x - 6 |
B. |
y = x3 - 2x2 - 9x + 18 |
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C. |
y = x3 - 2x2 + 9x - 18 |
D. |
y = x2 + x - 6 |
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Hint |
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9. |
Which equation is in quadratic form? |
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A. |
 |
B. |
3x3 + 3x + 3 = 0 |
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C. |
 |
D. |
x4 - x2 + x - 1 = 0 |
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Hint |
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10. |
Find the inverse of the function f(x) = 2x + 3. |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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11. |
Find ln 0.732 to four decimal places. |
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A. |
-0.4719 |
B. |
-0.5227 |
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C. |
-0.3120 |
D. |
-0.4624 |
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Hint |
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12. |
Evaluate z – (2yz + y) · y if y = -3 and z = 2. |
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A. |
23 |
B. |
-43 |
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C. |
47 |
D. |
9 |
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Hint |
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13. |
Is the relation shown in the graph a function? Why or why not? |
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A. |
No, the relation contains the ordered pairs (0, -1) and (3, -1). |
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B. |
No, the relation contains the ordered pairs (3, -1) and (3, 2). |
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C. |
Yes, the relation contains very few ordered pairs. |
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D. |
Yes, the ordered pairs (-3, 2), (-1, 1), and (3, -1) form a straight line. |
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Hint |
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14. |
When finding the equation for a line of fit for a scatter plot, you should use __________. |
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A. |
the first and last points on the plot, with respect to the horizontal |
B. |
all of the points on the plot |
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C. |
the point most characteristic of the scatter plot |
D. |
two points that you think represent the data well |
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Hint |
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15. |
Determine whether the expression 5x3y3 – x2y2 is a polynomial. |
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A. |
No, because there are two terms. |
B. |
Cannot be determined from given information. |
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C. |
No, because there are two variables. |
D. |
Yes. |
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Hint |
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16. |
 |
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A. |
1 |
B. |
4 |
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C. |
5 |
D. |
–5 |
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Hint |
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17. |
Solve  |
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A. |
 |
B. |
36 |
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C. |
18 |
D. |
no real solution. |
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Hint |
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18. |
In the equation  do you have to square both sides? |
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A. |
no |
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B. |
yes, in order to simplify. |
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C. |
cannot be determined |
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D. |
yes, in order to isolate x |
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Hint |
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19. |
If the vertex of a parabola is (3, -4), what is its axis of symmetry? |
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A. |
y = -4 |
B. |
x = -4 |
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C. |
x = 3 |
D. |
y = 3 |
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Hint |
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20. |
Suppose that Pam could build a house in  months and Jerry could build a house in  months. If they work together, how long would it take them to build the house? |
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A. |
 months |
B. |
5 months |
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C. |
 months |
D. |
10 months |
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Hint |
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