| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.66 |
| Score | 0% | 73% |
Solve for y:
-3y + 1 > 9 + 9y
| y > -\(\frac{2}{3}\) | |
| y > 1\(\frac{1}{3}\) | |
| y > -1 | |
| y > -\(\frac{3}{8}\) |
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.
-3y + 1 > 9 + 9y
-3y > 9 + 9y - 1
-3y - 9y > 9 - 1
-12y > 8
y > \( \frac{8}{-12} \)
y > -\(\frac{2}{3}\)
If a = c = 8, b = d = 5, what is the area of this rectangle?
| 40 | |
| 1 | |
| 3 | |
| 14 |
The area of a rectangle is equal to its length x width:
a = l x w
a = a x b
a = 8 x 5
a = 40
If angle a = 58° and angle b = 51° what is the length of angle c?
| 132° | |
| 71° | |
| 89° | |
| 91° |
The sum of the interior angles of a triangle is 180°:
180° = a° + b° + c°
c° = 180° - a° - b°
c° = 180° - 58° - 51° = 71°
If a = 7, b = 2, c = 7, and d = 4, what is the perimeter of this quadrilateral?
| 21 | |
| 20 | |
| 23 | |
| 27 |
Perimeter is equal to the sum of the four sides:
p = a + b + c + d
p = 7 + 2 + 7 + 4
p = 20
If BD = 28 and AD = 29, AB = ?
| 20 | |
| 1 | |
| 2 | |
| 6 |
The entire length of this line is represented by AD which is AB + BD:
AD = AB + BD
Solving for AB:AB = AD - BD