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Solve -9b + 3b = -8b - 7z - 7 for b in terms of z.
| 10z + 7 | |
| -5z + 2\(\frac{1}{2}\) | |
| 1\(\frac{1}{11}\)z - \(\frac{5}{11}\) | |
| -\(\frac{3}{5}\)z - \(\frac{1}{5}\) |
To solve this equation, isolate the variable for which you are solving (b) on one side of the equation and put everything else on the other side.
-9b + 3z = -8b - 7z - 7
-9b = -8b - 7z - 7 - 3z
-9b + 8b = -7z - 7 - 3z
-b = -10z - 7
b = \( \frac{-10z - 7}{-1} \)
b = \( \frac{-10z}{-1} \) + \( \frac{-7}{-1} \)
b = 10z + 7
On this circle, a line segment connecting point A to point D is called:
diameter |
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circumference |
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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).
On this circle, line segment CD is the:
diameter |
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circumference |
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radius |
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chord |
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).
Which of the following statements about a triangle is not true?
sum of interior angles = 180° |
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area = ½bh |
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perimeter = sum of side lengths |
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exterior angle = sum of two adjacent interior angles |
A triangle is a three-sided polygon. It has three interior angles that add up to 180° (a + b + c = 180°). An exterior angle of a triangle is equal to the sum of the two interior angles that are opposite (d = b + c). The perimeter of a triangle is equal to the sum of the lengths of its three sides, the height of a triangle is equal to the length from the base to the opposite vertex (angle) and the area equals one-half triangle base x height: a = ½ base x height.
A quadrilateral is a shape with __________ sides.
5 |
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2 |
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4 |
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3 |
A quadrilateral is a shape with four sides. The perimeter of a quadrilateral is the sum of the lengths of its four sides.