| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.34 |
| Score | 0% | 67% |
Order the following types of angle from least number of degrees to most number of degrees.
right, acute, obtuse |
|
right, obtuse, acute |
|
acute, obtuse, right |
|
acute, right, obtuse |
An acute angle measures less than 90°, a right angle measures 90°, and an obtuse angle measures more than 90°.
Solve for y:
6y - 9 > \( \frac{y}{-9} \)
| y > 1\(\frac{26}{55}\) | |
| y > -1 | |
| y > -1\(\frac{20}{29}\) | |
| y > \(\frac{2}{17}\) |
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.
6y - 9 > \( \frac{y}{-9} \)
-9 x (6y - 9) > y
(-9 x 6y) + (-9 x -9) > y
-54y + 81 > y
-54y + 81 - y > 0
-54y - y > -81
-55y > -81
y > \( \frac{-81}{-55} \)
y > 1\(\frac{26}{55}\)
If a = 5, b = 7, c = 8, and d = 2, what is the perimeter of this quadrilateral?
| 18 | |
| 12 | |
| 22 | |
| 20 |
Perimeter is equal to the sum of the four sides:
p = a + b + c + d
p = 5 + 7 + 8 + 2
p = 22
The dimensions of this cylinder are height (h) = 2 and radius (r) = 4. What is the surface area?
| 12π | |
| 48π | |
| 224π | |
| 16π |
The surface area of a cylinder is 2πr2 + 2πrh:
sa = 2πr2 + 2πrh
sa = 2π(42) + 2π(4 x 2)
sa = 2π(16) + 2π(8)
sa = (2 x 16)π + (2 x 8)π
sa = 32π + 16π
sa = 48π
If a = c = 3, b = d = 5, what is the area of this rectangle?
| 15 | |
| 21 | |
| 1 | |
| 3 |
The area of a rectangle is equal to its length x width:
a = l x w
a = a x b
a = 3 x 5
a = 15