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1. |
Simplify  Assume the denominator is not equal to zero. |
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A. |
5xy8 |
B. |
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C. |
5xy2 |
D. |
1 |
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Hint |
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2. |
The area of the rectangle shown below is 4x3y2, and its base b is 2x5y. Find the height, h. |
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A. |
2x2y |
B. |
8x8y3 |
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C. |
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D. |
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Hint |
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3. |
Express 765,000,000,000 in scientific notation. |
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A. |
7.65 × 1010 |
B. |
7.65 × 10-11 |
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C. |
0.765 × 1012 |
D. |
7.65 × 1011 |
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Hint |
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4. |
Which expression is a binomial? |
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A. |
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B. |
-3xy |
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C. |
5x - 2 |
D. |
5x2y + 4x – 6 |
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Hint |
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5. |
Find –8x3y2(3xy4 – 2x5 – y). |
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A. |
–24x4y6 + 16x8y2 + 8x3y3 |
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B. |
–24x4y6 + 16x15y2 + 8x3y3 |
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C. |
–24x4y6 - 16x8y2 + 8x3y3 |
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D. |
–5x4y6 - 10x8y2 - 9x3y3 |
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Hint |
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6. |
Find (x + 3)(x - 5). |
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A. |
x2 - 15 |
B. |
x2 + 2x - 15 |
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C. |
x2 + 8x - 15 |
D. |
x2 - 2x - 15 |
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Hint |
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7. |
Find (3a + 4b)2 |
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A. |
3a2 + 24ab + 4b2 |
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B. |
9a2 + 16b2 |
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C. |
9a2 + 12ab + 16b2 |
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D. |
9a2 + 24ab + 16b2 |
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Hint |
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8. |
Simplify ((22)3)4. |
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A. |
220 = 1,048,576 |
B. |
224 =16,777,216 |
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C. |
212 = 4096 |
D. |
29 = 512 |
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Hint |
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9. |
Suppose that the base of a triangle is 3xy and its height is also 3xy. What is its area, expressed as a monomial? |
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A. |
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B. |
x4 |
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C. |
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D. |
6x2y2 |
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Hint |
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10. |
Express 4.67 × 10-7 in standard notation. |
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A. |
0.000000467 |
B. |
0.00000467 |
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C. |
0.0000000467 |
D. |
46,700,000 |
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Hint |
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11. |
How can the following expression be described 3x2 + 4x + 5x – 3? |
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A. |
trinomial |
B. |
binomial |
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C. |
polynomial other than these listed |
D. |
monomial |
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Hint |
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12. |
Find (4x2 – 2x – 3) + (–x2 + 7x – 4). |
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A. |
3x2 + 5x + 1 |
B. |
5x2 + 5x – 7 |
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C. |
3x2 + 5x – 7 |
D. |
5x2 + 5x + 1 |
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Hint |
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13. |
Find (–2x2 + 5x – 1) – (3x2 – 4x – 6). |
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A. |
–5x2 + x + 5 |
B. |
–5x2 + 9x – 7 |
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C. |
–5x2 + 9x + 5 |
D. |
–5x2 + x – 7 |
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Hint |
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14. |
A worker has a cafeteria meal plan. The plan requires her to pay $20 for the card, and $1 each time x she uses it. If the company sells 100 cards, what is its total revenue? |
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A. |
2100 |
B. |
2000 |
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C. |
100x |
D. |
2000 + 100x |
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Hint |
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15. |
A rectangle has a base of 4x – 1 and a height of 3x + 2. What is the area? |
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A. |
12x2 – 5x + 2 |
B. |
12x2 + 5x – 2 |
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C. |
12x2 + 5x + 2 |
D. |
12x2 – 5x – 2 |
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Hint |
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16. |
The length of one side of a square is x + 4. What is the area? |
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A. |
2x + 8 |
B. |
x2 + 8x + 16 |
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C. |
x2 + 4x + 16 |
D. |
x2 + 8x + 8 |
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Hint |
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