| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.56 |
| Score | 0% | 51% |
If the base of this triangle is 3 and the height is 6, what is the area?
| 35 | |
| 9 | |
| 18 | |
| 49\(\frac{1}{2}\) |
The area of a triangle is equal to ½ base x height:
a = ½bh
a = ½ x 3 x 6 = \( \frac{18}{2} \) = 9
The dimensions of this cube are height (h) = 1, length (l) = 9, and width (w) = 3. What is the volume?
| 192 | |
| 16 | |
| 27 | |
| 18 |
The volume of a cube is height x length x width:
v = h x l x w
v = 1 x 9 x 3
v = 27
If the length of AB equals the length of BD, point B __________ this line segment.
bisects |
|
midpoints |
|
intersects |
|
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 the area of a circle is which of the following?
c = π r |
|
c = π d2 |
|
c = π r2 |
|
c = π d |
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.
Solve for z:
-6z - 9 = \( \frac{z}{8} \)
| -1\(\frac{23}{49}\) | |
| -1\(\frac{5}{27}\) | |
| -\(\frac{63}{64}\) | |
| -4\(\frac{4}{9}\) |
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.
-6z - 9 = \( \frac{z}{8} \)
8 x (-6z - 9) = z
(8 x -6z) + (8 x -9) = z
-48z - 72 = z
-48z - 72 - z = 0
-48z - z = 72
-49z = 72
z = \( \frac{72}{-49} \)
z = -1\(\frac{23}{49}\)