| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.39 |
| Score | 0% | 68% |
4! = ?
4 x 3 x 2 x 1 |
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4 x 3 |
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5 x 4 x 3 x 2 x 1 |
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3 x 2 x 1 |
A factorial has the form n! and is the product of the integer (n) and all the positive integers below it. For example, 5! = 5 x 4 x 3 x 2 x 1 = 120.
Solve 5 + (3 + 3) ÷ 4 x 3 - 22
| 1\(\frac{1}{3}\) | |
| 5\(\frac{1}{2}\) | |
| \(\frac{3}{8}\) | |
| \(\frac{3}{5}\) |
Use PEMDAS (Parentheses, Exponents, Multipy/Divide, Add/Subtract):
5 + (3 + 3) ÷ 4 x 3 - 22
P: 5 + (6) ÷ 4 x 3 - 22
E: 5 + 6 ÷ 4 x 3 - 4
MD: 5 + \( \frac{6}{4} \) x 3 - 4
MD: 5 + \( \frac{18}{4} \) - 4
AS: \( \frac{20}{4} \) + \( \frac{18}{4} \) - 4
AS: \( \frac{38}{4} \) - 4
AS: \( \frac{38 - 16}{4} \)
\( \frac{22}{4} \)
5\(\frac{1}{2}\)
What is \( \frac{3}{6} \) x \( \frac{1}{7} \)?
| \(\frac{6}{35}\) | |
| \(\frac{1}{14}\) | |
| \(\frac{1}{4}\) | |
| \(\frac{3}{7}\) |
To multiply fractions, multiply the numerators together and then multiply the denominators together:
\( \frac{3}{6} \) x \( \frac{1}{7} \) = \( \frac{3 x 1}{6 x 7} \) = \( \frac{3}{42} \) = \(\frac{1}{14}\)
\({b + c \over a} = {b \over a} + {c \over a}\) defines which of the following?
distributive property for division |
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commutative property for multiplication |
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commutative property for division |
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distributive property for multiplication |
The distributive property for division helps in solving expressions like \({b + c \over a}\). It specifies that the result of dividing a fraction with multiple terms in the numerator and one term in the denominator can be obtained by dividing each term individually and then totaling the results: \({b + c \over a} = {b \over a} + {c \over a}\). For example, \({a^3 + 6a^2 \over a^2} = {a^3 \over a^2} + {6a^2 \over a^2} = a + 6\).
What is 8a5 x 4a4?
| 12a20 | |
| 32a9 | |
| 32a | |
| 32a20 |
To multiply terms with exponents, the base of both exponents must be the same. In this case they are so multiply the coefficients and add the exponents:
8a5 x 4a4
(8 x 4)a(5 + 4)
32a9