| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.64 |
| Score | 0% | 73% |
Simplify 3a x 2b.
| 6ab | |
| 6\( \frac{b}{a} \) | |
| 6\( \frac{a}{b} \) | |
| 5ab |
To multiply monomials, multiply the coefficients (the numbers that come before the variables) of each term, add the exponents of like variables, and multiply the different variables together.
3a x 2b = (3 x 2) (a x b) = 6ab
A coordinate grid is composed of which of the following?
all of these |
|
x-axis |
|
y-axis |
|
origin |
The coordinate grid is composed of a horizontal x-axis and a vertical y-axis. The center of the grid, where the x-axis and y-axis meet, is called the origin.
The dimensions of this cube are height (h) = 1, length (l) = 6, and width (w) = 4. What is the volume?
| 315 | |
| 504 | |
| 36 | |
| 24 |
The volume of a cube is height x length x width:
v = h x l x w
v = 1 x 6 x 4
v = 24
The dimensions of this trapezoid are a = 6, b = 9, c = 9, d = 5, and h = 4. What is the area?
| 12 | |
| 18 | |
| 21 | |
| 28 |
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(9 + 5)(4)
a = ½(14)(4)
a = ½(56) = \( \frac{56}{2} \)
a = 28
A(n) __________ is to a parallelogram as a square is to a rectangle.
quadrilateral |
|
trapezoid |
|
rhombus |
|
triangle |
A rhombus is a parallelogram with four equal-length sides. A square is a rectangle with four equal-length sides.