Solve the system of equations.
- 4x + 11y = 15
x = 2y
y =
x=

Let f (x) = x e8x. find a formula for the nth derivative of f, where n is any positive integer. use x and n in your answer if needed. f (n)(x) =

See attachment below and find the equivalent of tan(∠qsr)

Acyclist bike x distance at 10 miles per hour .and returns over the same path at 8 miles per hour.what is the cyclist average rate for the round trip in miles per hour ?