| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.13 |
| Score | 0% | 63% |
If angle a = 20° and angle b = 46° what is the length of angle c?
| 120° | |
| 97° | |
| 114° | |
| 91° |
The sum of the interior angles of a triangle is 180°:
180° = a° + b° + c°
c° = 180° - a° - b°
c° = 180° - 20° - 46° = 114°
If a = c = 6, b = d = 7, what is the area of this rectangle?
| 24 | |
| 16 | |
| 6 | |
| 42 |
The area of a rectangle is equal to its length x width:
a = l x w
a = a x b
a = 6 x 7
a = 42
The formula for the area of a circle is which of the following?
c = π r |
|
c = π r2 |
|
c = π d2 |
|
c = π d |
The circumference of a circle is the distance around its perimeter and equals π (approx. 3.14159) x diameter: c = π d. The area of a circle is π x (radius)2 : a = π r2.
To multiply binomials, use the FOIL method. Which of the following is not a part of the FOIL method?
First |
|
Last |
|
Odd |
|
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.
Solve for a:
7a - 7 < -4 + 6a
| a < 3 | |
| a < -3 | |
| a < \(\frac{2}{9}\) | |
| a < -\(\frac{1}{3}\) |
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.
7a - 7 < -4 + 6a
7a < -4 + 6a + 7
7a - 6a < -4 + 7
a < 3