| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.80 |
| Score | 0% | 76% |
If side x = 6cm, side y = 7cm, and side z = 9cm what is the perimeter of this triangle?
| 32cm | |
| 31cm | |
| 22cm | |
| 25cm |
The perimeter of a triangle is the sum of the lengths of its sides:
p = x + y + z
p = 6cm + 7cm + 9cm = 22cm
A coordinate grid is composed of which of the following?
y-axis |
|
origin |
|
all of these |
|
x-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.
Solve for z:
-4z + 6 < 2 + 6z
| z < \(\frac{2}{5}\) | |
| z < \(\frac{1}{5}\) | |
| z < -1\(\frac{1}{3}\) | |
| z < \(\frac{4}{9}\) |
To solve this equation, repeatedly do the same thing to both sides of the equation until the variable is isolated on one side of the < sign and the answer on the other.
-4z + 6 < 2 + 6z
-4z < 2 + 6z - 6
-4z - 6z < 2 - 6
-10z < -4
z < \( \frac{-4}{-10} \)
z < \(\frac{2}{5}\)
What is 7a - 7a?
| 14 | |
| 49a | |
| 0a | |
| 0 |
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.
7a - 7a = 0a
Order the following types of angle from least number of degrees to most number of degrees.
right, acute, obtuse |
|
acute, right, obtuse |
|
acute, obtuse, right |
|
right, obtuse, acute |
An acute angle measures less than 90°, a right angle measures 90°, and an obtuse angle measures more than 90°.