| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.49 |
| Score | 0% | 70% |
What is 8a6 - 5a6?
| 13 | |
| a612 | |
| 13a12 | |
| 3a6 |
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.
8a6 - 5a6 = 3a6
What is 8a6 + 2a6?
| 10a12 | |
| 16a12 | |
| 10a6 | |
| 16a6 |
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.
8a6 + 2a6 = 10a6
Simplify 5a x 6b.
| 11ab | |
| 30ab | |
| 30\( \frac{a}{b} \) | |
| 30\( \frac{b}{a} \) |
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 6b = (5 x 6) (a x b) = 30ab
If the base of this triangle is 8 and the height is 8, what is the area?
| 17\(\frac{1}{2}\) | |
| 32 | |
| 78 | |
| 60 |
The area of a triangle is equal to ½ base x height:
a = ½bh
a = ½ x 8 x 8 = \( \frac{64}{2} \) = 32
Which types of triangles will always have at least two sides of equal length?
equilateral, isosceles and right |
|
equilateral and right |
|
isosceles and right |
|
equilateral and isosceles |
An isosceles triangle has two sides of equal length. An equilateral triangle has three sides of equal length. In a right triangle, two sides meet at a right angle.