| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.11 |
| Score | 0% | 62% |
Order the following types of angle from least number of degrees to most number of degrees.
acute, obtuse, right |
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right, obtuse, acute |
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right, acute, obtuse |
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acute, right, obtuse |
An acute angle measures less than 90°, a right angle measures 90°, and an obtuse angle measures more than 90°.
What is 6a6 - 7a6?
| 13a12 | |
| -1a6 | |
| -a12 | |
| 13 |
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.
6a6 - 7a6 = -1a6
If side a = 8, side b = 1, what is the length of the hypotenuse of this right triangle?
| \( \sqrt{65} \) | |
| \( \sqrt{80} \) | |
| \( \sqrt{68} \) | |
| \( \sqrt{34} \) |
According to the Pythagorean theorem, the hypotenuse squared is equal to the sum of the two perpendicular sides squared:
c2 = a2 + b2
c2 = 82 + 12
c2 = 64 + 1
c2 = 65
c = \( \sqrt{65} \)
Solve for x:
-9x + 8 > -5 - 7x
| x > 6\(\frac{1}{2}\) | |
| x > \(\frac{1}{3}\) | |
| x > 1 | |
| x > \(\frac{3}{5}\) |
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.
-9x + 8 > -5 - 7x
-9x > -5 - 7x - 8
-9x + 7x > -5 - 8
-2x > -13
x > \( \frac{-13}{-2} \)
x > 6\(\frac{1}{2}\)
On this circle, a line segment connecting point A to point D is called:
radius |
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diameter |
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chord |
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circumference |
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).