From the top of a building, 40 feet above the ground, a construction worker locates a rock at a 12°
angle of depression.
how far is the rock from the building?
round the answer to the nearest foot.
39 ft
0.41 ft
188 ft
192 ft

step-by-step explanation:

x^2 -12x + 36 + y^2 = 36

x^2 + y^2 = 12x

r^2 = 12rcos(theta)

r = 12 cos(theta)

justin bieber ml.

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to determine the unit cost your would divide the total cost by the number sold.

7 bagels for $4.41       $4.41/7 = $.63 each at fresh side

5 bagels for $3.60         $3.60/5 = $.72 each at value mart