Answer:
1.y=1/2+2
2.y=-2+1
3.y=3/2+3
4.y=-2/3-2
Step-by-step explanation:
Answer:
see explanation
Step-by-step explanation:
The length of the arc is calculated as
AB = circumference of circle × fraction of circle
(11)
AB = 2πr × 
= 2π × 7 × 
= 14π × 
= 
π in
(12)
AB = 2πr × 
( r = 20 ÷ 2 = 10 )
= 2π × 10 × 
= 20π ×
= 
π
= 
π cm
N = 14.4
so it would be "B"
24 x 5.85 = 140.4
9.75 x n = 9.75n
140.4/9.75 = 14.4
n=14.4
Answer:
x=4
Step-by-step explanation:
4x-3=5x-7
-1x-3=-7 Subtract the 5x on both sides
-1x=-4 Add the -3 to the -7
x=4
For the function
y = cos(1/2 x)
The x-intercept can be calculated by equating the function to zero and solving for x. So,
y = cos(1/2 x) = 0
1/2 x = arc cos 0
1/2 x = 90° +180°n
x =2 (90° +180°n)
x = 180° + 360°n
or converting to radians
x = (180° + 360° n)(π/180°)
x = π + 2π n
where n is any whole number
if n = 0
x = π
