| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.28 |
| Score | 0% | 66% |
To multiply binomials, use the FOIL method. Which of the following is not a part of the FOIL method?
Last |
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Odd |
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First |
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Inside |
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.
Solve -6a + 9a = -5a - 8x - 2 for a in terms of x.
| -\(\frac{7}{12}\)x - \(\frac{3}{4}\) | |
| 17x + 2 | |
| -3x + 8 | |
| \(\frac{1}{6}\)x - \(\frac{5}{6}\) |
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.
-6a + 9x = -5a - 8x - 2
-6a = -5a - 8x - 2 - 9x
-6a + 5a = -8x - 2 - 9x
-a = -17x - 2
a = \( \frac{-17x - 2}{-1} \)
a = \( \frac{-17x}{-1} \) + \( \frac{-2}{-1} \)
a = 17x + 2
What is the circumference of a circle with a diameter of 7?
| 19π | |
| 6π | |
| 4π | |
| 7π |
The formula for circumference is circle diameter x π:
c = πd
c = 7π
When two lines intersect, adjacent angles are __________ (they add up to 180°) and angles across from either other are __________ (they're equal).
vertical, supplementary |
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obtuse, acute |
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acute, obtuse |
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supplementary, vertical |
Angles around a line add up to 180°. Angles around a point add up to 360°. When two lines intersect, adjacent angles are supplementary (they add up to 180°) and angles across from either other are vertical (they're equal).
What is 4a - 8a?
| -4a | |
| 32a | |
| -4 | |
| 12 |
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 - 8a = -4a