| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.66 |
| Score | 0% | 73% |
If a = c = 5, b = d = 6, and the blue angle = 79°, what is the area of this parallelogram?
| 12 | |
| 21 | |
| 30 | |
| 18 |
The area of a parallelogram is equal to its length x width:
a = l x w
a = a x b
a = 5 x 6
a = 30
The formula for volume of a cube in terms of height (h), length (l), and width (w) is which of the following?
lw x wh + lh |
|
h2 x l2 x w2 |
|
h x l x w |
|
2lw x 2wh + 2lh |
A cube is a rectangular solid box with a height (h), length (l), and width (w). The volume is h x l x w and the surface area is 2lw x 2wh + 2lh.
If a = c = 4, b = d = 6, what is the area of this rectangle?
| 2 | |
| 24 | |
| 21 | |
| 30 |
The area of a rectangle is equal to its length x width:
a = l x w
a = a x b
a = 4 x 6
a = 24
What is 3a3 + 6a3?
| 9 | |
| 18a3 | |
| -3 | |
| 9a3 |
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.
3a3 + 6a3 = 9a3
What is 9a + 9a?
| 2 | |
| 18a | |
| 0 | |
| 81a |
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.
9a + 9a = 18a