| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.52 |
| Score | 0% | 70% |
If BD = 15 and AD = 22, AB = ?
| 12 | |
| 7 | |
| 2 | |
| 20 |
The entire length of this line is represented by AD which is AB + BD:
AD = AB + BD
Solving for AB:AB = AD - BDThe dimensions of this cube are height (h) = 7, length (l) = 6, and width (w) = 8. What is the volume?
| 120 | |
| 240 | |
| 135 | |
| 336 |
The volume of a cube is height x length x width:
v = h x l x w
v = 7 x 6 x 8
v = 336
Solve for a:
-a + 8 = \( \frac{a}{6} \)
| -\(\frac{1}{2}\) | |
| 6\(\frac{6}{7}\) | |
| -\(\frac{24}{35}\) | |
| -7 |
To solve this equation, repeatedly do the same thing to both sides of the equation until the variable is isolated on one side of the equal sign and the answer on the other.
-a + 8 = \( \frac{a}{6} \)
6 x (-a + 8) = a
(6 x -a) + (6 x 8) = a
-6a + 48 = a
-6a + 48 - a = 0
-6a - a = -48
-7a = -48
a = \( \frac{-48}{-7} \)
a = 6\(\frac{6}{7}\)
Order the following types of angle from least number of degrees to most number of degrees.
acute, right, obtuse |
|
acute, obtuse, right |
|
right, acute, obtuse |
|
right, obtuse, acute |
An acute angle measures less than 90°, a right angle measures 90°, and an obtuse angle measures more than 90°.
What is 3a6 + 6a6?
| 18a12 | |
| a612 | |
| 9a12 | |
| 9a6 |
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.
3a6 + 6a6 = 9a6