| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.76 |
| Score | 0% | 55% |
The dimensions of this cylinder are height (h) = 8 and radius (r) = 9. What is the volume?
| 150π | |
| 36π | |
| 648π | |
| 12π |
The volume of a cylinder is πr2h:
v = πr2h
v = π(92 x 8)
v = 648π
The dimensions of this trapezoid are a = 4, b = 6, c = 5, d = 5, and h = 3. What is the area?
| 28 | |
| 22\(\frac{1}{2}\) | |
| 16\(\frac{1}{2}\) | |
| 8 |
The area of a trapezoid is one-half the sum of the lengths of the parallel sides multiplied by the height:
a = ½(b + d)(h)
a = ½(6 + 5)(3)
a = ½(11)(3)
a = ½(33) = \( \frac{33}{2} \)
a = 16\(\frac{1}{2}\)
If the length of AB equals the length of BD, point B __________ this line segment.
midpoints |
|
trisects |
|
intersects |
|
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.
Solve for y:
8y + 1 > \( \frac{y}{-2} \)
| y > -\(\frac{2}{17}\) | |
| y > -\(\frac{5}{6}\) | |
| y > 1\(\frac{13}{43}\) | |
| y > 1\(\frac{5}{19}\) |
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.
8y + 1 > \( \frac{y}{-2} \)
-2 x (8y + 1) > y
(-2 x 8y) + (-2 x 1) > y
-16y - 2 > y
-16y - 2 - y > 0
-16y - y > 2
-17y > 2
y > \( \frac{2}{-17} \)
y > -\(\frac{2}{17}\)
What is the circumference of a circle with a diameter of 11?
| 4π | |
| 10π | |
| 1π | |
| 11π |
The formula for circumference is circle diameter x π:
c = πd
c = 11π