Answer:
A
Step-by-step explanation:
So first you need to know the formula for the area of a segment of a circle which is... A = 0.5 × (θ - sinθ) × r²
*make sure that you do this question in RADIANS
You know that θ (the angle) is 90° which is equal to π/2 and the radius is 3, so from here you just plug in numbers to the equation.
A = 0.5 × ( π/2 - sin(π/2)) × 3²
A = 2.5685... sq units = 3 sq units
A^2 + b^2 = c^2
4^2 + b^2 = 10^2
16 + b^2 = 100
b^2 = 100 - 16
b^2 = 84
b = SqrRt 84 = 9.2 <- Correct answer!
Answer:
110.5
Step-by-step explanation:
i don't know if it's correct but I try to use the calculator.
Distribute and get 2x^2+6x=2x^2+2x-5x-5
add like terms and get 2x^2+6x=2x^2-3x-5
subtract 2x^2 from both sides and get
6x=3x-5
subtract 3x from both sides
3x=5
divide both sides by 3
x=5/3
