Triangle FGH has a right angle at ZG. If cos F
cos F = 12/13, What is the value
of sin ?

A. A zip line begins 50 ft above the ground in an oak tree, crosses a field, and ends in a maple tree. The trees are 125 ft apart. The zip line is at a 15° angle of depression.

A. Find the length of the zip line. Round to the nearest tenth of a foot.

B. What is the height, from
the ground of the endpoint of thezip line?

50=33x+22

step-by-step explanation:

answer: translate the circles so they share a common center point and dilate circle y by a scale factor of 3.

let's call the solutions x₁ = (5 - 2√7)/3 and x₂ = (5 + 2√7)/3

then the equation is (x-x₁)(x-x₂) = 0

if you fill that in you get a lot of numbers which you can recognize as ax²+bx+c=0.

step-by-step explanation:

you can see that a=1 (there is just an x²)

b = (-5 -2√7 + 2√7 - 5)/3 = -10/3

c = -2√7)/3 ) * (-5+2√7)/3) = -1/3

so your answer is 3x^2 – 10x – 1 = 0