| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.39 |
| Score | 0% | 68% |
To multiply binomials, use the FOIL method. Which of the following is not a part of the FOIL method?
Odd |
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Inside |
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Last |
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First |
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.
A trapezoid is a quadrilateral with one set of __________ sides.
parallel |
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right angle |
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equal angle |
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equal length |
A trapezoid is a quadrilateral with one set of parallel sides.
What is 3a + 6a?
| 9a | |
| 18a2 | |
| 9a2 | |
| -3 |
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.
3a + 6a = 9a
If b = 9 and z = 6, what is the value of -7b(b - z)?
| -189 | |
| 72 | |
| 16 | |
| 0 |
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.)
-7b(b - z)
-7(9)(9 - 6)
-7(9)(3)
(-63)(3)
-189
Solve -4a + 4a = a - z - 8 for a in terms of z.
| z + 1\(\frac{3}{5}\) | |
| -1\(\frac{1}{4}\)z + 1\(\frac{3}{4}\) | |
| \(\frac{1}{3}\)z - 1 | |
| z - 3\(\frac{1}{2}\) |
To solve this equation, isolate the variable for which you are solving (a) on one side of the equation and put everything else on the other side.
-4a + 4z = a - z - 8
-4a = a - z - 8 - 4z
-4a - a = -z - 8 - 4z
-5a = -5z - 8
a = \( \frac{-5z - 8}{-5} \)
a = \( \frac{-5z}{-5} \) + \( \frac{-8}{-5} \)
a = z + 1\(\frac{3}{5}\)