Answer:
12
Step-by-step explanation:
U need to use a scientific calculater
100 + x-4 +3x =180
x = 21
hope it help
Answer:
213
Step-by-step explanation:
convert percent to decimal 48%=0.48
144x0.48= 69.12
estimate 69.12 we got 69
144+69=213
Answer:
Perimeter of sector is 47.93 cm which is greater than 47.5 cm
Step-by-step explanation:
Mathematically, the perimeter of a sector is length of the arc plus 2 radii
The length of the arc is;
theta/360 * 2 * pi * r
where theta is the angle subtended by the arc at the center of the circle
Thus, we have
135/360 * 2 * 22/7 * 11 = 25.93
Add 2 radii = 25.93 + 2(11) = 47.93 cm
This is greater than what we are asked to calculate and thus we have shown what we are asked to show
