Can someone help me pls

the only explanation to this is segment MN is tangent to circle L because it touches the circle L in one point

For MN to be tangent, angle N would need to be 90 degrees making the triangle a right triangle.

Using the Pythagorean theorem uses the base and the height to see if it equals what is shown for the hypotenuse. If it does it is tangent.

Hypotenuse = SQRT(18^2 + 80^2)

Hypotenuse = sqrt(324 + 6400)

Hypotenuse = sqrt(6724)

Hypotenuse = 82

This matches the 82 shown in the picture, so it is a right triangle, making MN tangent to circle L.

9.55 degrees.

step-by-step explanation:

the given angle is

1 cycle is equal to 2π radians. so 4π will be equal to two cycles.

5.166667π-4π = 1.166667π

hence, this angle goes a little more than negative x axis.

1.166667π-π= 0.166667π

hence, the reference angle is 0.166667π radians.

1 radian = 57.2958 degrees

now, in degrees, this should be equals to 9.55 degrees.

f(x)=2/3x-8, which give g(x) the greatest value.

step-by-step explanation: