| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.53 |
| Score | 0% | 71% |
A(n) __________ is to a parallelogram as a square is to a rectangle.
quadrilateral |
|
trapezoid |
|
triangle |
|
rhombus |
A rhombus is a parallelogram with four equal-length sides. A square is a rectangle with four equal-length sides.
A coordinate grid is composed of which of the following?
y-axis |
|
origin |
|
x-axis |
|
all of these |
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.
A trapezoid is a quadrilateral with one set of __________ sides.
equal angle |
|
right angle |
|
parallel |
|
equal length |
A trapezoid is a quadrilateral with one set of parallel sides.
Simplify (2a)(3ab) - (5a2)(9b).
| -39a2b | |
| 51ab2 | |
| 70ab2 | |
| 39ab2 |
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.
(2a)(3ab) - (5a2)(9b)
(2 x 3)(a x a x b) - (5 x 9)(a2 x b)
(6)(a1+1 x b) - (45)(a2b)
6a2b - 45a2b
-39a2b
What is 4a3 - 7a3?
| -3a3 | |
| 11a6 | |
| -3 | |
| 11 |
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.
4a3 - 7a3 = -3a3