| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.92 |
| Score | 0% | 58% |
The dimensions of this cylinder are height (h) = 3 and radius (r) = 5. What is the volume?
| 150π | |
| 75π | |
| 9π | |
| 27π |
The volume of a cylinder is πr2h:
v = πr2h
v = π(52 x 3)
v = 75π
Solve for z:
z + 5 < \( \frac{z}{2} \)
| z < 3\(\frac{3}{26}\) | |
| z < -1\(\frac{4}{5}\) | |
| z < 1\(\frac{7}{41}\) | |
| z < -10 |
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 + 5 < \( \frac{z}{2} \)
2 x (z + 5) < z
(2 x z) + (2 x 5) < z
2z + 10 < z
2z + 10 - z < 0
2z - z < -10
z < -10
z < \( \frac{-10}{1} \)
z < -10
What is 4a2 - 4a2?
| a24 | |
| 8a4 | |
| 16a2 | |
| 0a2 |
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.
4a2 - 4a2 = 0a2
If the length of AB equals the length of BD, point B __________ this line segment.
intersects |
|
midpoints |
|
bisects |
|
trisects |
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.
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 |
|
h x l x w |
|
h2 x l2 x w2 |
|
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.