1. | x - 5 | = 4
x - 5 = 4 or x - 5 = -4
2. | x - 5 | < 4
-4 < x - 5 < 4
3. | x - 5 | > 4
x - 5 > 4 or x - 5 < -4
4. | 2x + 3 | < 8
-8 < 2x + 3 < 8
5. | 2x + 3 | > 8
2x + 3 > 8 or 2x + 3 < -8
If the radius of a circle is doubled, the area of the circle is quadrupled.
area of a circle = 2(pi)(radius)^2
when r = 2, area = 8pi
when r = 4, area = 32pi
you can see that the area is quadrupled
L = rc
where c = angle in radians , r = radius and l = length of the arc
so
5.4 = 6 r
r = 0.9 radians
and this equals the angle at the center.
0.9
Answer:
1
Step-by-step explanation:
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