| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.28 |
| Score | 0% | 66% |
This diagram represents two parallel lines with a transversal. If c° = 34, what is the value of x°?
| 146 | |
| 14 | |
| 159 | |
| 39 |
For parallel lines with a transversal, the following relationships apply:
Applying these relationships starting with c° = 34, the value of x° is 146.
Factor y2 + y - 30
| (y - 5)(y + 6) | |
| (y + 5)(y + 6) | |
| (y + 5)(y - 6) | |
| (y - 5)(y - 6) |
To factor a quadratic expression, apply the FOIL method (First, Outside, Inside, Last) in reverse. First, find the two Last terms that will multiply to produce -30 as well and sum (Inside, Outside) to equal 1. For this problem, those two numbers are -5 and 6. Then, plug these into a set of binomials using the square root of the First variable (y2):
y2 + y - 30
y2 + (-5 + 6)y + (-5 x 6)
(y - 5)(y + 6)
Which of the following expressions contains exactly two terms?
monomial |
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quadratic |
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polynomial |
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binomial |
A monomial contains one term, a binomial contains two terms, and a polynomial contains more than two terms.
Solve for x:
x - 2 > \( \frac{x}{-5} \)
| x > 1\(\frac{2}{3}\) | |
| x > -1\(\frac{31}{33}\) | |
| x > -\(\frac{2}{7}\) | |
| x > -1\(\frac{11}{43}\) |
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.
x - 2 > \( \frac{x}{-5} \)
-5 x (x - 2) > x
(-5 x x) + (-5 x -2) > x
-5x + 10 > x
-5x + 10 - x > 0
-5x - x > -10
-6x > -10
x > \( \frac{-10}{-6} \)
x > 1\(\frac{2}{3}\)
On this circle, line segment AB is the:
circumference |
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diameter |
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chord |
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radius |
A circle is a figure in which each point around its perimeter is an equal distance from the center. The radius of a circle is the distance between the center and any point along its perimeter. A chord is a line segment that connects any two points along its perimeter. The diameter of a circle is the length of a chord that passes through the center of the circle and equals twice the circle's radius (2r).