4.) 180-25 = 155 a straight line cuts the circle in half (i.e 180 degrees) then subtract out the 25.
Answer = 15 pi or about 37.12
Explanation: First you find the circumference using the formula c=2(pi)r. Radius = 18
C=2pi(18). Circumference= 36pi
Next find the measure of the arc. Multiply (36pi) by (150*degree of the arc*/360*total degree of a circle*). Plug into calculator.
Let f(x) be the real value function. Remember that:
→ Even: f(x) = f(-x) → Odd: -f(x) = f(-x)
If -f(x), then -f(x) = -x³ + 5x If x = -x, then f(-x) = -x³ + 5x
Since -f(x) = f(x), the function is therefore odd.
0.5
you just need to move the dot to the right