A ladder is leaning against a brick wall so that the top of the ladder is even with the top of the wall. If you know that the height of the wall is 7 ft and the distance from the bottom of the ladder to the
bottom of the wall is five feet less than the length of the ladder, how long is the ladder?
The ladder is
feet long

understand that i don't know the answers

will someone answer his question

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).