| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.36 |
| Score | 0% | 67% |
Which of the following statements about exponents is false?
b1 = b |
|
b1 = 1 |
|
all of these are false |
|
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).
What is the greatest common factor of 44 and 64?
| 14 | |
| 23 | |
| 5 | |
| 4 |
The factors of 44 are [1, 2, 4, 11, 22, 44] and the factors of 64 are [1, 2, 4, 8, 16, 32, 64]. They share 3 factors [1, 2, 4] making 4 the greatest factor 44 and 64 have in common.
Which of these numbers is a factor of 32?
| 1 | |
| 34 | |
| 7 | |
| 5 |
The factors of a number are all positive integers that divide evenly into the number. The factors of 32 are 1, 2, 4, 8, 16, 32.
Find the average of the following numbers: 9, 7, 9, 7.
| 13 | |
| 3 | |
| 8 | |
| 9 |
To find the average of these 4 numbers add them together then divide by 4:
\( \frac{9 + 7 + 9 + 7}{4} \) = \( \frac{32}{4} \) = 8
Bob loaned Christine $1,000 at an annual interest rate of 3%. If no payments are made, what is the total amount owed at the end of the first year?
| $1,010 | |
| $1,030 | |
| $1,020 | |
| $1,060 |
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 $1,000
i = 0.03 x $1,000
No payments were made so the total amount due is the original amount + the accumulated interest:
total = $1,000 + $30