Answer:
360
Area
Step-by-step explanation:
The formula of the area of a sector in a circle is:
Area of sector = 
× πr², where
- x is the central angle of the sector
- πr² is the area of the sector
Example:
The measure of a central angle is 60°, and the area of the circle is 12π unit², then the area of the sector of the central angle is:
Area of the sector = 
× 12π = 2π
To find the area of the sector
Divide the measure of the central angle by 360
Multiply the result by Area of the circle
<h3>
Answer: 24</h3>
Explanation:
There are 4 choices for first place, 3 choices for second place, and 2 choices for third place. Overall, there are 4*3*2 = 24 permutations.
Answer:
-7/3
Step-by-step explanation:
Answer:
I believe it is 200. Forgive me if its wrong-
Answer:
x = 5
Step-by-step explanation:
The area (A) o a rectangle is calculated as
A = lb ( l is length and b the breadth ), thus
x² + x - 12 × 
= 126 ← factor the quadratic
(x + 4)(x - 3) × = 126 ← cancel the common factor (x - 3)
(x + 4)(x + 9) = 126 ← expand factors using FOIL
x² + 13x + 36 = 126 ( subtract 126 from both sides )
x² + 13x - 90 = 0 ← in standard form
(x + 18)(x - 5) = 0 ← in factored form
Equate each factor to zero and solve for x
x + 18 = 0 ⇒ x = - 18
x - 5 = 0 ⇒ x = 5
However x > 0 ⇒ x = 5
