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1. |
Which statement illustrates the associative property of multiplication? |
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A. |
(2x)y = 2xy |
B. |
(2x)y = 2(xy) |
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C. |
(2x)y = y(2x) |
D. |
(2x)y = (x · 2)y |
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Hint |
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2. |
Write an equation for the following word problem. A number is 6 times another number. The sum of the two numbers is 56. |
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A. |
y + y = 56 |
B. |
y = 56 |
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C. |
y + 6y = 56 |
D. |
y = 6(56) |
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Hint |
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3. |
Evaluate:  when x = 3, y = 2, and z = 19. |
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A. |
2 |
B. |
1 |
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C. |
 |
D. |
19 |
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Hint |
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4. |
 and  are similar. Find a if x = 7, y = 1,
and  |
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A. |
1 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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5. |
Write an equation for {(5, 2), (0, 12), (1, 10), (-2, 16)} |
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A. |
y = x + 12 |
B. |
y = x + 9 |
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C. |
y = 2x - 12 |
D. |
y = -2x + 12 |
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Hint |
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6. |
Graph the system of equations to determine whether it has no solution, many solutions, or one solution. If the system has one solution, name it.
3x - 2y = -1
2x + y = 4 |
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A. |
one solution at (1, 2) |
B. |
no solution |
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C. |
one solution at (2, 1) |
D. |
infinitely many solutions |
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Hint |
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7. |
Find (x - 4)2. |
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A. |
x2 - 8x + 16 |
B. |
x2 + 16 |
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C. |
x2 - 4x + 16 |
D. |
x2 - 16 |
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Hint |
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8. |
The Mendoza family just bought a house for $180,000. If the value of the house increases at a rate of 3% per year, about how much will it be worth in 10 years? |
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A. |
$258,000 |
B. |
$234,000 |
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C. |
$242,000 |
D. |
$250,000 |
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Hint |
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9. |
Find  . |
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A. |
2 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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10. |
Simplify the expression  . |
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A. |
100 mph |
B. |
198 s/ft |
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C. |
132 ft/s |
D. |
88 ft/s |
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Hint |
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11. |
Simplify  |
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A. |
72 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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12. |
Identify the conclusion in the following statement: If 13b + 12 = 77, then b = 5. |
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A. |
13b + 12 |
B. |
b = 5 |
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C. |
b |
D. |
13b + 12 = 17 |
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Hint |
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13. |
A chemistry experiment calls for a 25% solution of copper sulfate. Juanita has 20 milliliters of 15% solution. How many milliliters of 35% solution should she add to obtain the required 25% solution? |
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A. |
20 milliliters |
B. |
15 milliliters |
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C. |
17 milliliters |
D. |
23 milliliters |
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Hint |
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14. |
Find the solution set for y =  x – 3, given the replacement set {(-8, -7), (-5, -5), (0, 3), (4, 5)} |
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A. |
{(-5, -5), (4, 5)} |
B. |
{(-8, -7), (0, 3)} |
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C. |
{(-8, -7)} |
D. |
{(-5, -5)} |
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Hint |
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15. |
Write an equation of the line shown in the graph. |
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A. |
y = -2x – 5 |
B. |
y = 2x – 5 |
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C. |
y = 2x + 5 |
D. |
y = -2x + 5 |
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Hint |
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16. |
Find B – A. |
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A. |
 |
B. |
impossible |
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C. |
 |
D. |
 |
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Hint |
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17. |
What is the value of (4.4 × 109)(3 × 10-5) in scientific notation? |
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A. |
1.32 × 104 |
B. |
1.5 × 104 |
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C. |
1.32 × 106 |
D. |
1.32 × 105 |
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Hint |
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18. |
Factor x2 – 4x – 32. |
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A. |
(x +16)(x – 2) |
B. |
(x – 16)(x + 2) |
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C. |
(x + 8)(x – 4) |
D. |
(x – 8)(x + 4) |
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Hint |
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19. |
Determine whether the trinomial 9x2 – 60x + 25 is a perfect square trinomial. If so, factor it. |
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A. |
(3x + 5)(3x + 5) |
B. |
It is prime. |
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C. |
(3x – 5)(3x – 5) |
D. |
(3x – 5)(3x + 5) |
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Hint |
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20. |
Ricky invested $1000 in an account at 8% interest compounded quarterly. How much money will he have earned on the account after 7 years? |
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A. |
$713.82 |
B. |
$1,713.82 |
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C. |
$1,741.02 |
D. |
$741.02 |
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Hint |
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