# Chapter 5 Extra Credit

7 Questions | Total Attempts: 44  Settings  Test on 5-1 thru 5-4

• 1.
Simplify (3x^0)^2(2x^4)
• A.

X^4

• B.

12x^4

• C.

18x^6

• D.

18x^4

• 2.
Scientists have determined that the speed at which light travels is approxiamtely 300,000,000 meters per second.  Express this speed in scientific notation.
• A.

3 x 10^7 m/s

• B.

3 x 10^8 m/s

• C.

3 x 10^(-8) m/s

• D.

30 x 10^(-7) m/s

• 3.
Simplify (5m - 9) + (4m + 2)
• A.

9m - 11

• B.

M - 11

• C.

9m - 7

• D.

20m^2 - 18

• 4.
Simplify (x^2 - 2x - 35) / (x + 5)
• A.

X^2 - x - 30

• B.

X - 7

• C.

X + 5

• D.

X^3 + 3x^2

• 5.
Factor m^2 + 9m + 14 completely.
• A.

M(m + 23)

• B.

(m + 14)(m + 1)

• C.

(m + 7)(M + 2)

• D.

M(m + 9) + 14

• 6.
• A.

A

• B.

B

• C.

C

• D.

D

• 7.
Simplify (t^2 + t -6) / (t^2 -7t + 10).  Assume that the denominator is not equal to sero.
• A.

(t + 3) / (t - 5)

• B.

(t - 2) / (t + 5)

• C.

(t - 3) / (t + 5)

• D.

(t + 3) / (t + 5)

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