Answer:
Option D) 49π/4
Step-by-step explanation:
step 1
Find the circumference of the circle
The circumference of the circle is equal to

where
r is the radius
we have

substitute


step 2
Find the length of the given arc
we know that
The circumference of the circle subtends a central angle of 360 degrees
so
using proportion
Find out the length of the arc by a central angle of 315 degrees
Let
x ----> the length of the given arc

Simplify

Answer:
Step-by-step explanation:
y = 3x - 5
6x + 3y = 15
Substitute the first equation into the second
6x + 3(3x - 5) = 15
6x + 9x - 15 = 15
15x = 30
x = 2
Then use the answer in the first equation and solve
y = 3(2) - 5
y = 6 - 5
y = 1
I believe it is a person jumping on a trampoline.