| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.93 |
| Score | 0% | 79% |
If the base of this triangle is 2 and the height is 8, what is the area?
| 84 | |
| 20 | |
| 70 | |
| 8 |
The area of a triangle is equal to ½ base x height:
a = ½bh
a = ½ x 2 x 8 = \( \frac{16}{2} \) = 8
Which of the following is not a part of PEMDAS, the acronym for math order of operations?
exponents |
|
addition |
|
pairs |
|
division |
When solving an equation with two variables, replace the variables with the values given and then solve the now variable-free equation. (Remember order of operations, PEMDAS, Parentheses, Exponents, Multiplication/Division, Addition/Subtraction.)
A coordinate grid is composed of which of the following?
x-axis |
|
all of these |
|
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.
What is 2a3 + 5a3?
| 10a6 | |
| 7a6 | |
| 7a3 | |
| 7 |
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.
2a3 + 5a3 = 7a3
If side x = 8cm, side y = 6cm, and side z = 10cm what is the perimeter of this triangle?
| 22cm | |
| 24cm | |
| 34cm | |
| 23cm |
The perimeter of a triangle is the sum of the lengths of its sides:
p = x + y + z
p = 8cm + 6cm + 10cm = 24cm