| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.20 |
| Score | 0% | 64% |
If a = 1, b = 7, c = 3, and d = 1, what is the perimeter of this quadrilateral?
| 13 | |
| 16 | |
| 15 | |
| 12 |
Perimeter is equal to the sum of the four sides:
p = a + b + c + d
p = 1 + 7 + 3 + 1
p = 12
Solve for x:
-7x - 6 < -9 - 8x
| x < \(\frac{5}{6}\) | |
| x < -3 | |
| x < -\(\frac{2}{7}\) | |
| x < -\(\frac{1}{2}\) |
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.
-7x - 6 < -9 - 8x
-7x < -9 - 8x + 6
-7x + 8x < -9 + 6
x < -3
A trapezoid is a quadrilateral with one set of __________ sides.
equal angle |
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equal length |
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right angle |
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parallel |
A trapezoid is a quadrilateral with one set of parallel sides.
Which of the following is not required to define the slope-intercept equation for a line?
slope |
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\({\Delta y \over \Delta x}\) |
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y-intercept |
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x-intercept |
A line on the coordinate grid can be defined by a slope-intercept equation: y = mx + b. For a given value of x, the value of y can be determined given the slope (m) and y-intercept (b) of the line. The slope of a line is change in y over change in x, \({\Delta y \over \Delta x}\), and the y-intercept is the y-coordinate where the line crosses the vertical y-axis.
On this circle, line segment AB is the:
circumference |
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chord |
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diameter |
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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).