| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.03 |
| Score | 0% | 61% |
Solve for z:
-z - 9 > \( \frac{z}{4} \)
| z > 2\(\frac{6}{7}\) | |
| z > -2\(\frac{4}{5}\) | |
| z > 4\(\frac{2}{13}\) | |
| z > -7\(\frac{1}{5}\) |
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 > sign and the answer on the other.
-z - 9 > \( \frac{z}{4} \)
4 x (-z - 9) > z
(4 x -z) + (4 x -9) > z
-4z - 36 > z
-4z - 36 - z > 0
-4z - z > 36
-5z > 36
z > \( \frac{36}{-5} \)
z > -7\(\frac{1}{5}\)
If a = c = 4, b = d = 9, and the blue angle = 56°, what is the area of this parallelogram?
| 36 | |
| 56 | |
| 18 | |
| 14 |
The area of a parallelogram is equal to its length x width:
a = l x w
a = a x b
a = 4 x 9
a = 36
Order the following types of angle from least number of degrees to most number of degrees.
right, obtuse, acute |
|
acute, obtuse, right |
|
right, acute, obtuse |
|
acute, right, obtuse |
An acute angle measures less than 90°, a right angle measures 90°, and an obtuse angle measures more than 90°.
The formula for volume of a cube in terms of height (h), length (l), and width (w) is which of the following?
h x l x w |
|
lw x wh + lh |
|
2lw x 2wh + 2lh |
|
h2 x l2 x w2 |
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.
Solve for b:
4b - 3 > 1 + 8b
| b > 6 | |
| b > -1\(\frac{3}{4}\) | |
| b > -1 | |
| b > 1 |
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 > sign and the answer on the other.
4b - 3 > 1 + 8b
4b > 1 + 8b + 3
4b - 8b > 1 + 3
-4b > 4
b > \( \frac{4}{-4} \)
b > -1