| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.91 |
| Score | 0% | 78% |
Simplify 5a x 2b.
| 7ab | |
| 10ab | |
| 10\( \frac{b}{a} \) | |
| 10\( \frac{a}{b} \) |
To multiply monomials, multiply the coefficients (the numbers that come before the variables) of each term, add the exponents of like variables, and multiply the different variables together.
5a x 2b = (5 x 2) (a x b) = 10ab
What is 5a9 - 8a9?
| a918 | |
| -3a9 | |
| 40a9 | |
| -3a18 |
To combine like terms, add or subtract the coefficients (the numbers that come before the variables) of terms that have the same variable raised to the same exponent.
5a9 - 8a9 = -3a9
If angle a = 60° and angle b = 70° what is the length of angle c?
| 136° | |
| 69° | |
| 50° | |
| 88° |
The sum of the interior angles of a triangle is 180°:
180° = a° + b° + c°
c° = 180° - a° - b°
c° = 180° - 60° - 70° = 50°
What is 7a - 5a?
| 2 | |
| 35a | |
| 2a2 | |
| 2a |
To combine like terms, add or subtract the coefficients (the numbers that come before the variables) of terms that have the same variable raised to the same exponent.
7a - 5a = 2a
The dimensions of this cube are height (h) = 3, length (l) = 6, and width (w) = 5. What is the volume?
| 42 | |
| 56 | |
| 90 | |
| 18 |
The volume of a cube is height x length x width:
v = h x l x w
v = 3 x 6 x 5
v = 90