| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.87 |
| Score | 0% | 57% |
Which of the following statements about exponents is false?
b1 = b |
|
b1 = 1 |
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all of these are false |
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b0 = 1 |
A number with an exponent (be) consists of a base (b) raised to a power (e). The exponent indicates the number of times that the base is multiplied by itself. A base with an exponent of 1 equals the base (b1 = b) and a base with an exponent of 0 equals 1 ( (b0 = 1).
Which of the following is not a prime number?
2 |
|
9 |
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5 |
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7 |
A prime number is an integer greater than 1 that has no factors other than 1 and itself. Examples of prime numbers include 2, 3, 5, 7, and 11.
Roger loaned Monica $1,500 at an annual interest rate of 4%. If no payments are made, what is the total amount owed at the end of the first year?
| $1,605 | |
| $1,530 | |
| $1,560 | |
| $1,575 |
The yearly interest charged on this loan is the annual interest rate multiplied by the amount borrowed:
interest = annual interest rate x loan amount
i = (\( \frac{6}{100} \)) x $1,500
i = 0.04 x $1,500
No payments were made so the total amount due is the original amount + the accumulated interest:
total = $1,500 + $60The __________ is the smallest positive integer that is a multiple of two or more integers.
least common multiple |
|
least common factor |
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absolute value |
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greatest common factor |
The least common multiple (LCM) is the smallest positive integer that is a multiple of two or more integers.
If a mayor is elected with 79% of the votes cast and 55% of a town's 24,000 voters cast a vote, how many votes did the mayor receive?
| 10,296 | |
| 10,428 | |
| 8,976 | |
| 11,748 |
If 55% of the town's 24,000 voters cast ballots the number of votes cast is:
(\( \frac{55}{100} \)) x 24,000 = \( \frac{1,320,000}{100} \) = 13,200
The mayor got 79% of the votes cast which is:
(\( \frac{79}{100} \)) x 13,200 = \( \frac{1,042,800}{100} \) = 10,428 votes.