| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.55 |
| Score | 0% | 51% |
The dimensions of this cube are height (h) = 1, length (l) = 6, and width (w) = 5. What is the surface area?
| 190 | |
| 52 | |
| 100 | |
| 82 |
The surface area of a cube is (2 x length x width) + (2 x width x height) + (2 x length x height):
sa = 2lw + 2wh + 2lh
sa = (2 x 6 x 5) + (2 x 5 x 1) + (2 x 6 x 1)
sa = (60) + (10) + (12)
sa = 82
Solve for x:
6x - 5 = 1 - x
| -1 | |
| \(\frac{6}{7}\) | |
| 1 | |
| \(\frac{1}{2}\) |
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.
6x - 5 = 1 - x
6x = 1 - x + 5
6x + x = 1 + 5
7x = 6
x = \( \frac{6}{7} \)
x = \(\frac{6}{7}\)
The formula for the area of a circle is which of the following?
c = π d2 |
|
c = π r |
|
c = π d |
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c = π r2 |
The circumference of a circle is the distance around its perimeter and equals π (approx. 3.14159) x diameter: c = π d. The area of a circle is π x (radius)2 : a = π r2.
A(n) __________ is two expressions separated by an equal sign.
equation |
|
expression |
|
formula |
|
problem |
An equation is two expressions separated by an equal sign. The key to solving equations is to 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.
If the length of AB equals the length of BD, point B __________ this line segment.
midpoints |
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intersects |
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trisects |
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bisects |
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.