Triangle FGH has a right angle at ZG. If cos F
cos F = 12. 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?

i will pick c put check it over to be sure

step-by-step explanation:

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

hope this !

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