6pi or 18.85 m because you need to find the circumference of a circle with radius 3.
Answer:
y = cos(x) -1
Step-by-step explanation:
The function has a maximum at x=0, a peak-to-peak amplitude of 2, and a period of 2π. It matches a cosine function that has been shifted down 1 unit.
y = cos(x) -1
8 + 6 + 9 + 12 + 4x / 5 = x Original Problem.
25 + 4x / 5 = x Addition.
25 + 4x = 5x Multiply each side by 5.
25 = x Subtract 4x from each side.
x = 25 Switch equation around.
Answer: x = 25
Step-by-step explanation:
b) 
c) 
Answer:
Step-by-step explanation:
{3 x + 4 = y, 3 x = 4 y + 11}
{y = 3 x + 4, y = (3 x)/4 - 11/4}
{2 (3 x - y) = -8, 4 y - 3 x = -11}
