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1. |
Write an algebraic expression to represent ''the sum of 6 and three times a number squared.'' |
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A. |
6(3x)2 |
B. |
6 + 3x |
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C. |
6 + 3x2 |
D. |
6(3x) |
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Hint |
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2. |
Solve the system of inequalities by graphing. 
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A. |
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B. |
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C. |
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D. |
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Hint |
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3. |
A graph of a system of three linear equations in three variables is shown below. How many solutions does the system have? |
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A. |
0 |
B. |
1 |
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C. |
infinite number |
D. |
2 |
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Hint |
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4. |
Solve the system of equations. 
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A. |
(7, -2, 1) |
B. |
(10, -1, 11) |
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C. |
(13, 0, -4) |
D. |
(1, -4, 6) |
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Hint |
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5. |
Find  |
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A. |
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B. |
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C. |
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D. |
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Hint |
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6. |
Find  |
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A. |
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B. |
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C. |
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D. |
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Hint |
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7. |
Find the area of the parallelogram. |
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A. |
(36a2 - 49b2) cm2 |
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B. |
(12a2 + 14b2) cm2 |
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C. |
(36a2 - 84ab - 49b2) cm2 |
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D. |
(36a2 + 49b2) cm2 |
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Hint |
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8. |
Which value of c makes the trinomial x2 + 16x + c a perfect square? |
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A. |
64 |
B. |
256 |
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C. |
128 |
D. |
32 |
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Hint |
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9. |
Approximate the real zero of g(x) = x5 - x2 - 1 to the nearest tenth. |
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A. |
1.2 |
B. |
1.1 |
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C. |
0.9 |
D. |
1.0 |
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Hint |
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10. |
Solve 6z > 39. |
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A. |
{z | z < 234} |
B. |
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C. |
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D. |
{z | z > 234} |
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Hint |
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11. |
Consider the formula F(c) = 1.8c + 32, where c is the temperature in degrees Celsius and F(c) is the temperature in degrees Fahrenheit. If it is 0° C at the beginning of the day, and it is 11° C at noon, what was the change in temperature in degrees Fahrenheit? |
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A. |
51.8 |
B. |
19.8 |
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C. |
-12.2 |
D. |
11 |
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Hint |
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12. |
Which of the following systems of equations is not consistent and independent? |
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A. |
y + 4x = 10 6y + 24x = 60 |
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B. |
7y + x = 9 3y + 9x = 4 |
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C. |
2y + 4x = 3 7y + 5x = 18 |
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D. |
–y – 5x = 1 4y + 3x = 8 |
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Hint |
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13. |
What is always true of an n × n matrix? |
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A. |
It is a row matrix. |
B. |
It is a column matrix. |
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C. |
It has at least two rows and two columns. |
D. |
It is a square matrix. |
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Hint |
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14. |
Find the product of  |
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A. |
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B. |
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C. |
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D. |
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Hint |
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15. |
Vince and Brian each need two kinds of items at the store. Vince bought 10 of item A and 14 of item B, and spent $97. Brian bought 8 of item A and 25 of item B, and spent $119. How much did each item cost? |
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A. |
item A = $2.10
item B = $1.14 |
B. |
item A = $3
item B = $5.50 |
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C. |
item A = $5.50
item B = $3 |
D. |
item A = $1.14
item B = $2.10 |
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Hint |
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16. |
Simplify  |
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A. |
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B. |
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C. |
27x3ny6 |
D. |
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Hint |
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17. |
Factor 3ty3 – 48ty. |
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A. |
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B. |
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C. |
3ty(y + 4)(y – 4) |
D. |
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Hint |
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18. |
Which of the following graphs best represents the function y = –x2 + 7x + 8? |
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A. |
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B. |
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C. |
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D. |
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Hint |
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19. |
Find the value for the discriminant for the following equation:  . Then describe the number and type of roots. |
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A. |
The discriminant is 100, which is a perfect square; therefore, there are two rational roots |
B. |
The discriminant is 96, which is not a perfect square; therefore, there are two irrational roots. |
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C. |
The discriminant is 100, which is not a perfect square; therefore, there are two irrational roots |
D. |
The discriminant is negative, so there are two complex roots. |
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Hint |
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20. |
Find consecutive values of x between which each real zero of the function  is located. |
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A. |
–3 and –4 |
B. |
no solution |
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C. |
–5 and –4 |
D. |
3 and 4 |
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Hint |
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