| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.63 |
| Score | 0% | 73% |
Solve for y:
-5y + 4 = \( \frac{y}{2} \)
| \(\frac{12}{49}\) | |
| -1\(\frac{1}{5}\) | |
| \(\frac{8}{11}\) | |
| \(\frac{36}{37}\) |
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 equal sign and the answer on the other.
-5y + 4 = \( \frac{y}{2} \)
2 x (-5y + 4) = y
(2 x -5y) + (2 x 4) = y
-10y + 8 = y
-10y + 8 - y = 0
-10y - y = -8
-11y = -8
y = \( \frac{-8}{-11} \)
y = \(\frac{8}{11}\)
A quadrilateral is a shape with __________ sides.
5 |
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4 |
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3 |
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2 |
A quadrilateral is a shape with four sides. The perimeter of a quadrilateral is the sum of the lengths of its four sides.
To multiply binomials, use the FOIL method. Which of the following is not a part of the FOIL method?
First |
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Odd |
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Last |
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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.
If a = c = 3, b = d = 4, what is the area of this rectangle?
| 40 | |
| 49 | |
| 12 | |
| 5 |
The area of a rectangle is equal to its length x width:
a = l x w
a = a x b
a = 3 x 4
a = 12
Which of the following is not true about both rectangles and squares?
all interior angles are right angles |
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the lengths of all sides are equal |
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the area is length x width |
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the perimeter is the sum of the lengths of all four sides |
A rectangle is a parallelogram containing four right angles. Opposite sides (a = c, b = d) are equal and the perimeter is the sum of the lengths of all sides (a + b + c + d) or, comonly, 2 x length x width. The area of a rectangle is length x width. A square is a rectangle with four equal length sides. The perimeter of a square is 4 x length of one side (4s) and the area is the length of one side squared (s2).