| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.68 |
| Score | 0% | 74% |
If a = c = 3, b = d = 7, and the blue angle = 64°, what is the area of this parallelogram?
| 21 | |
| 10 | |
| 18 | |
| 56 |
The area of a parallelogram is equal to its length x width:
a = l x w
a = a x b
a = 3 x 7
a = 21
A quadrilateral is a shape with __________ sides.
4 |
|
2 |
|
5 |
|
3 |
A quadrilateral is a shape with four sides. The perimeter of a quadrilateral is the sum of the lengths of its four sides.
Which of the following is not a part of PEMDAS, the acronym for math order of operations?
addition |
|
division |
|
pairs |
|
exponents |
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(n) __________ is two expressions separated by an equal sign.
formula |
|
equation |
|
problem |
|
expression |
An equation is two expressions separated by an equal sign. The key to solving equations is to repeatedly do the same thing to both sides of the equation until the variable is isolated on one side of the equal sign and the answer on the other.
The endpoints of this line segment are at (-2, -2) and (2, -4). What is the slope of this line?
| -\(\frac{1}{2}\) | |
| 3 | |
| 1\(\frac{1}{2}\) | |
| -3 |
The slope of this line is the change in y divided by the change in x. The endpoints of this line segment are at (-2, -2) and (2, -4) so the slope becomes:
m = \( \frac{\Delta y}{\Delta x} \) = \( \frac{(-4.0) - (-2.0)}{(2) - (-2)} \) = \( \frac{-2}{4} \)