| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.94 |
| Score | 0% | 79% |
A quadrilateral is a shape with __________ sides.
4 |
|
5 |
|
2 |
|
3 |
A quadrilateral is a shape with four sides. The perimeter of a quadrilateral is the sum of the lengths of its four sides.
The dimensions of this cylinder are height (h) = 3 and radius (r) = 7. What is the surface area?
| 168π | |
| 140π | |
| 324π | |
| 48π |
The surface area of a cylinder is 2πr2 + 2πrh:
sa = 2πr2 + 2πrh
sa = 2π(72) + 2π(7 x 3)
sa = 2π(49) + 2π(21)
sa = (2 x 49)π + (2 x 21)π
sa = 98π + 42π
sa = 140π
A coordinate grid is composed of which of the following?
x-axis |
|
origin |
|
all of these |
|
y-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.
Simplify 8a x 7b.
| 56\( \frac{b}{a} \) | |
| 15ab | |
| 56ab | |
| 56\( \frac{a}{b} \) |
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.
8a x 7b = (8 x 7) (a x b) = 56ab
If a = c = 5, b = d = 6, what is the area of this rectangle?
| 30 | |
| 7 | |
| 16 | |
| 1 |
The area of a rectangle is equal to its length x width:
a = l x w
a = a x b
a = 5 x 6
a = 30