| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.87 |
| Score | 0% | 77% |
To multiply binomials, use the FOIL method. Which of the following is not a part of the FOIL method?
Odd |
|
Inside |
|
First |
|
Last |
To multiply binomials, use the FOIL method. FOIL stands for First, Outside, Inside, Last and refers to the position of each term in the parentheses.
What is 4a - 5a?
| -a2 | |
| 20a2 | |
| -1a | |
| -1 |
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.
4a - 5a = -1a
What is 4a + 5a?
| 20a | |
| 20a2 | |
| 9a | |
| -a2 |
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.
4a + 5a = 9a
Solve for b:
-3b - 1 = -2 + 5b
| 6 | |
| -\(\frac{7}{9}\) | |
| -8 | |
| \(\frac{1}{8}\) |
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 equal sign and the answer on the other.
-3b - 1 = -2 + 5b
-3b = -2 + 5b + 1
-3b - 5b = -2 + 1
-8b = -1
b = \( \frac{-1}{-8} \)
b = \(\frac{1}{8}\)
If side x = 12cm, side y = 13cm, and side z = 13cm what is the perimeter of this triangle?
| 27cm | |
| 38cm | |
| 37cm | |
| 31cm |
The perimeter of a triangle is the sum of the lengths of its sides:
p = x + y + z
p = 12cm + 13cm + 13cm = 38cm