Friday

December 9, 2016
Posted by **Mittens** on Wednesday, September 5, 2012 at 1:49pm.

When I couldn't find a symbol for the exponent I used the ^

1. 18râ´ sâµ tâ¶ Ã· -3r² s t³ = ?

A. 6r²sâµt³

B. -6r²sâµt³

C. 6r²sâ´t³

D. -6r²sâ´t³

2. One day when Terry went to school the temperature outside was âˆ’15 degrees Fahrenheit. In Terryâ€™s classroom the temperature was 68 degrees Fahrenheit. How many more degrees was it inside the building than outside?

A. +53 degrees

B. âˆ’53 degrees

C. +83 degrees

D. âˆ’83 degrees

3. Simplify (2x + 3)(x âˆ’ 4) = ?

A. 2x² + 5x âˆ’ 12

B. 2x² âˆ’ 5x âˆ’ 12

C. 2x² âˆ’ 5x + 12

D. 2x² + 5x + 12

4. 7 x (âˆ’3) x(âˆ’2)² = ?

A. 48

B. âˆ’48

C. 84

D. âˆ’84

5. Simplify (3aâ´ âˆ’ 2a² + 5a âˆ’ 10) âˆ’ (2aâ´ + 4a² + 5a âˆ’ 2).

A. 5aâ´ + 4a³ + 3a² + 10a âˆ’ 12

B. aâ´ âˆ’ 4a³ âˆ’ 2a² âˆ’ 8

C. aâ´ âˆ’ 6a² âˆ’ 8

D. aâ´ + 2a² + 10a âˆ’ 12

6. If Janice purchased three 24-ounce cans of motor oil for $10.80, how much did she pay per ounce?

A. $.45

B. $.15

C. $2.59

D. $3.60

7. (5 + 4 âˆ’ 2) x( âˆ’2) = ?

A. 22

B. âˆ’22

C. 14

D. âˆ’14

8. Simplify (2e âˆ’ 2f )(2f + 8) = ?

A. 4ef âˆ’ 4f²

B. 4ef + 16e + 4f² + 16f

C. 4ef + 16e âˆ’ 4f² âˆ’ 16f

D. 4ef âˆ’ 16e âˆ’ 4f² âˆ’ 16f

9. The expression 12xyz âˆ’ 45 is a

A. monomial.

B. binomial.

C. trinomial.

D. constant.

10. What is the result if you divide âˆ’12x^8y^8 by 3xâ´y²?

A. âˆ’4x² yâ´

B. 4x 2yâ´

C. âˆ’4xâ´yâ¶

D. 4xâ´yâ¶

11. Simplify (x² + 16)(x² âˆ’ 16) = ?

A. xâ´ âˆ’ 32

B. xâ´ + 32

C. xâ´ âˆ’ 256

D. xâ´ + 256

12. Simplify (15x² âˆ’ 24x + 9)divided by (3x âˆ’ 3) = ?

A. 5x + 3

B. 5x âˆ’ 3

C. 5x + 13 with a âˆ’30 remainder

D. 5x âˆ’ 13 with a âˆ’30 remainder

13. If the value of b is 7, then what is the value of the expression âˆ’3b² + 25 = ?

A. 172

B. 122

C. âˆ’122

D. 17

14. Simplify (âˆ’8q³râ´s²)² = ?

A. 64q^9r^16sâ´

B. âˆ’64q^9r^16sâ´

C. âˆ’64q^6r^8sâ´

D. 64q^6r^8sâ´

15. Simplify 12 âˆ’ (âˆ’8) x 4 = ?

A. 16

B. 44

C. âˆ’20

D. 80

16. Simplify 2a²b³(4a² + 3ab² âˆ’ ab)= ?

A. 8aâ´ bâµ + 3a³ bâµ âˆ’ 2a³ bâ´

B. 8aâ´ b³ + 6a³ bâµ âˆ’ 2a³ bâ´

C. 8aâ´ b³ + 6a³ bâµ + 2a³ bâ´

D. 8aâ´ bâµ + 3a³ bâµ + 2a³ bâ´

17. Simplify (3n âˆ’ 2m)² = ?

A. 6n² âˆ’ 12mn âˆ’ 4m²

B. 9n² âˆ’ 12mn âˆ’ 4m²

C. 9n² + 12mn + 4m²

D. 9n² âˆ’ 12mn + 4m²

18. Simplify (3 x 22) divided by 6 + [28 âˆ’ (4)²] = ?

A. 32

B. 46

C. 23

D. 55

19. What is the result of dividing 48a³ + 32a² + 16a by 4a ?

A. 12a + 8

B. 12a² + 4a + 4

C. 12a² + 4a + 8

D. 12a² + 8a + 4

20. You can calculate the interest on a savings account by using this formula:

Interest = Principal Rate Time

If Mary deposits $275 in principal at an interest rate of 3.2 percent, how much interest will she earn

in one year?

A. $8.80

B. $88

C. $880

D. $18.80

My answers:

1. D

2. C

3. B

4. D

5. C

6. B

7. D

8. D

9. B

10. A or C

11. C

12. B

13. C

14. B

15. B

16. B

17. D

18. C

19. D

20. A

- algebra -
**Steve**, Wednesday, September 5, 2012 at 3:34pmDon't know where you copied the problems from, but the font got garbled for many of the problems. Anyway, trying to work past the font munging,

* means wrong

1. garbled, but probably B or D

2. C if outside is -15°F

3. B if it was (2x + 3)(x - 4)

4. garbled, but since 7 divides 84, probably C or D

5. garbled, but probably C - the coefficients seem good

6. B

7. D if it was (5+4-2)(-2)

*8. C if it was (2e-2f)(2f+8)

9. B

10. A or C, but too garbled

11. C if (x^2+16)(x^2-16) = x^4-256

12. B

13. C

*14. D garbled, but if the whole parenthesized expression is squared, then the coefficient must be 64, not -64. Also, (A) has q^9, which cannot be a square.

15. B

16. B

17. D

18. C

19. D

20. A

most look good; better double-check #8,14. If I interpreted them correctly, yo missed them. - algebra -
**Anonymous**, Wednesday, September 5, 2012 at 6:20pmSorry. It looked normal when I first posted it. I don't know what happened. Thank you for the answer, though!

- algebra -
**Mittens**, Thursday, September 6, 2012 at 12:13pm1. Was D

4. Was D

10. Was C

You were correct and I passed :) Thank you.