| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.48 |
| Score | 0% | 70% |
What is 2a6 + 6a6?
| 8a6 | |
| 8 | |
| 12a12 | |
| -4a12 |
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.
2a6 + 6a6 = 8a6
What is the area of a circle with a radius of 5?
| 64π | |
| 25π | |
| 36π | |
| 49π |
The formula for area is πr2:
a = πr2
a = π(52)
a = 25π
A coordinate grid is composed of which of the following?
x-axis |
|
origin |
|
y-axis |
|
all of these |
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.
If c = 2 and x = -9, what is the value of c(c - x)?
| 0 | |
| -378 | |
| 22 | |
| -364 |
To solve this equation, 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.)
c(c - x)
1(2)(2 + 9)
1(2)(11)
(2)(11)
22
If the length of AB equals the length of BD, point B __________ this line segment.
bisects |
|
trisects |
|
midpoints |
|
intersects |
A line segment is a portion of a line with a measurable length. The midpoint of a line segment is the point exactly halfway between the endpoints. The midpoint bisects (cuts in half) the line segment.