Solve the problem. Round to the nearest tenth of a percent, if necessary.By switching service providers, a family's telephone bill decreased from about $50 a month to about $45. What was the percent of decrease?
A. 11%
B.
| 5% |
C. 10%
D. 11.1%
Answer: C
Mathematics
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Solve for x in the following.
x = 
A. 
B. 
C. 
D. 
Mathematics
Write the power of i as i, -1, -i, or 1.i4
A. 1 B. i C. -1 D. -i
Mathematics
Factor the trinomial or state that the trinomial is irreducible.15x2 + 29x + 12
A. (15x + 4)(x + 3) B. (3x - 4)(5x - 3) C. (3x + 4)(5x + 3) D. irreducible
Mathematics
Simplify.-3 ? (-4 + 1.3)
A. 15.9 B. -15.9 C. -8.1 D. 8.1
Mathematics