Area of a circle = (pi)(radius squared)
Find the area of the larger circle, then find the area of the smaller circle and then subtract the difference.
Larger Circle:
A=(3.142)(5cm)2
A=(3.142)(25)
A=78.55
Smaller Circle:
A=(3.142)(2)2
A=(3.142)(4)
A=12.57
Subtract difference between the 2:
78.55-12.57= 65.98 cm is the area of the shaded portion
Y = 2x + 3
In function notation, all u do is change the y to f(x)
f(x) = 2x + 3 <== function notation.
6)
3x + 11 = 125
3x = 114
x = 38
7)
a)
130°
opposite angles
b)
50°
(i don't know the name of this relationship)
