| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.75 |
| Score | 0% | 75% |
What is (x2)2?
| x4 | |
| x0 | |
| 2x2 | |
| 42 |
To raise a term with an exponent to another exponent, retain the base and multiply the exponents:
(x2)2A bread recipe calls for 3\(\frac{3}{4}\) cups of flour. If you only have 1\(\frac{3}{4}\) cups, how much more flour is needed?
| 2 cups | |
| 1\(\frac{3}{4}\) cups | |
| 1\(\frac{1}{4}\) cups | |
| 2\(\frac{5}{8}\) cups |
The amount of flour you need is (3\(\frac{3}{4}\) - 1\(\frac{3}{4}\)) cups. Rewrite the quantities so they share a common denominator and subtract:
(\( \frac{30}{8} \) - \( \frac{14}{8} \)) cups
\( \frac{16}{8} \) cups
2 cups
Which of the following is a mixed number?
\({7 \over 5} \) |
|
\({a \over 5} \) |
|
\({5 \over 7} \) |
|
\(1 {2 \over 5} \) |
A rational number (or fraction) is represented as a ratio between two integers, a and b, and has the form \({a \over b}\) where a is the numerator and b is the denominator. An improper fraction (\({5 \over 3} \)) has a numerator with a greater absolute value than the denominator and can be converted into a mixed number (\(1 {2 \over 3} \)) which has a whole number part and a fractional part.
Which of the following is not an integer?
-1 |
|
\({1 \over 2}\) |
|
0 |
|
1 |
An integer is any whole number, including zero. An integer can be either positive or negative. Examples include -77, -1, 0, 55, 119.
Ezra loaned Jennifer $1,000 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?
| $1,040 | |
| $1,020 | |
| $1,080 | |
| $1,050 |
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 = 0.04 x $1,000
No payments were made so the total amount due is the original amount + the accumulated interest:
total = $1,000 + $40