| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.54 |
| Score | 0% | 71% |
If a = c = 3, b = d = 4, and the blue angle = 66°, what is the area of this parallelogram?
| 12 | |
| 40 | |
| 36 | |
| 24 |
The area of a parallelogram is equal to its length x width:
a = l x w
a = a x b
a = 3 x 4
a = 12
The formula for volume of a cube in terms of height (h), length (l), and width (w) is which of the following?
h2 x l2 x w2 |
|
2lw x 2wh + 2lh |
|
h x l x w |
|
lw x wh + lh |
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 c:
2c + 5 = 1 - 8c
| -\(\frac{1}{8}\) | |
| -\(\frac{2}{5}\) | |
| -1\(\frac{1}{5}\) | |
| \(\frac{2}{3}\) |
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.
2c + 5 = 1 - 8c
2c = 1 - 8c - 5
2c + 8c = 1 - 5
10c = -4
c = \( \frac{-4}{10} \)
c = -\(\frac{2}{5}\)
To multiply binomials, use the FOIL method. Which of the following is not a part of the FOIL method?
Odd |
|
Last |
|
First |
|
Inside |
To multiply binomials, use the FOIL method. FOIL stands for First, Outside, Inside, Last and refers to the position of each term in the parentheses.
What is 8a5 - 7a5?
| 1a5 | |
| 15 | |
| 15a10 | |
| 1 |
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.
8a5 - 7a5 = 1a5