Asubmersible traveling at a depth of 250 feet dives at an angle of 15 degrees with respect to a
line parallel to the water's surface. it travels a horizontal distance of 1500 feet during the dive.
what is the depth of the submersible after the dive?

Step-by-step explanation:

The submersible is diving at a down angle of 15° along the hypotenuse AC of triangle ABC.  

Its horizontal track along the surface AB is 1500 ft.

The submersible was already at a depth of 250 feet when it began the dive.

New depth = 250 + 402 = 652 ft

x = 3 ± √(5+y)

80° is the measure of gh

step-by-step explanation:

circle f is congruent to circle j

we have two circle with center f and j.

both circles are congruent. the radius of the circle would be equal.

see the attachment for the circle.

we are given ∠efd ≅ ∠gjh

therefore, arc (ed) = arc (gh)     (∴ circle f is congruent to circle j)

but ∠dfe=80°=arc (ed)

therefore, arc (gh) = 80°

thus, 80° is the measure of gh