| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 4.13 |
| Score | 0% | 83% |
If AD = 22 and BD = 21, AB = ?
| 1 | |
| 3 | |
| 15 | |
| 4 |
The entire length of this line is represented by AD which is AB + BD:
AD = AB + BD
Solving for AB:AB = AD - BDWhat is 2a2 + 4a2?
| 8a2 | |
| 6a2 | |
| 8a4 | |
| 6a4 |
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.
2a2 + 4a2 = 6a2
If side x = 14cm, side y = 10cm, and side z = 12cm what is the perimeter of this triangle?
| 31cm | |
| 27cm | |
| 36cm | |
| 30cm |
The perimeter of a triangle is the sum of the lengths of its sides:
p = x + y + z
p = 14cm + 10cm + 12cm = 36cm
A quadrilateral is a shape with __________ sides.
2 |
|
3 |
|
5 |
|
4 |
A quadrilateral is a shape with four sides. The perimeter of a quadrilateral is the sum of the lengths of its four sides.
A coordinate grid is composed of which of the following?
all of these |
|
origin |
|
x-axis |
|
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.