| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.02 |
| Score | 0% | 60% |
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 |
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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.
What is 4a9 - 7a9?
| -3a18 | |
| a918 | |
| -3a9 | |
| 11 |
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.
4a9 - 7a9 = -3a9
Solve -3b - 5b = -4b - x + 3 for b in terms of x.
| -x - 2 | |
| -2x + 1\(\frac{2}{3}\) | |
| 4x + 3 | |
| -6\(\frac{1}{2}\)x + 4 |
To solve this equation, isolate the variable for which you are solving (b) on one side of the equation and put everything else on the other side.
-3b - 5x = -4b - x + 3
-3b = -4b - x + 3 + 5x
-3b + 4b = -x + 3 + 5x
b = 4x + 3
If the length of AB equals the length of BD, point B __________ this line segment.
bisects |
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trisects |
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intersects |
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midpoints |
A line segment is a portion of a line with a measurable length. The midpoint of a line segment is the point exactly halfway between the endpoints. The midpoint bisects (cuts in half) the line segment.
What is 9a + 4a?
| 13a2 | |
| 5a2 | |
| 5 | |
| 13a |
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 + 4a = 13a