| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.98 |
| Score | 0% | 80% |
A coordinate grid is composed of which of the following?
origin |
|
y-axis |
|
all of these |
|
x-axis |
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) = 6, length (l) = 9, and width (w) = 6. What is the volume?
| 24 | |
| 324 | |
| 135 | |
| 144 |
The volume of a cube is height x length x width:
v = h x l x w
v = 6 x 9 x 6
v = 324
If a = c = 5, b = d = 7, and the blue angle = 78°, what is the area of this parallelogram?
| 40 | |
| 35 | |
| 56 | |
| 6 |
The area of a parallelogram is equal to its length x width:
a = l x w
a = a x b
a = 5 x 7
a = 35
The formula for the area of a circle is which of the following?
a = π r |
|
a = π d |
|
a = π d2 |
|
a = π r2 |
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.
Simplify 7a x 9b.
| 63ab | |
| 63\( \frac{b}{a} \) | |
| 63\( \frac{a}{b} \) | |
| 16ab |
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.
7a x 9b = (7 x 9) (a x b) = 63ab