| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.14 |
| Score | 0% | 63% |
What is 8a5 - 2a5?
| 10a10 | |
| 6a5 | |
| 6a10 | |
| a510 |
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.
8a5 - 2a5 = 6a5
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.
A(n) __________ is to a parallelogram as a square is to a rectangle.
triangle |
|
trapezoid |
|
rhombus |
|
quadrilateral |
A rhombus is a parallelogram with four equal-length sides. A square is a rectangle with four equal-length sides.
The dimensions of this cube are height (h) = 7, length (l) = 2, and width (w) = 5. What is the volume?
| 40 | |
| 24 | |
| 72 | |
| 70 |
The volume of a cube is height x length x width:
v = h x l x w
v = 7 x 2 x 5
v = 70
If side a = 4, side b = 5, what is the length of the hypotenuse of this right triangle?
| \( \sqrt{73} \) | |
| \( \sqrt{40} \) | |
| \( \sqrt{41} \) | |
| \( \sqrt{65} \) |
According to the Pythagorean theorem, the hypotenuse squared is equal to the sum of the two perpendicular sides squared:
c2 = a2 + b2
c2 = 42 + 52
c2 = 16 + 25
c2 = 41
c = \( \sqrt{41} \)