Three friends, A, B, and C form the vertices (corners) of a triangle on flat ground. Friend “A” is standing directly at the bottom of a sheer cliff. Directly above A, at
the top of the cliff, a fourth friend, “D”, is standing. The distance on the ground
between B and C is 400 m. The angle at “C” between A and B is 35º. The angle
at “B” between A and C is 27º. The angle of elevation from “C” to “D” at the top
of the cliff is 18° Find the angle formed at “D” between “B” and “C”.

answer: 7 x 2/5 = 2.8 hours, is your answer. your welcome! : 3

step-by-step explanation: first work out how long it took to hose 1/7 of the lawn which is 2/5 hours. times that by 7 to get the whole lawn.

sorry i don't know the other answer. i didn't learn what a proportional relationship is.

the answer i believe is 27 units.

step-by-step explanation:

if y=4x then you will substitute 4x in for y in the second equation.

8x + 4x = 18 combine like terms

12x = 18 divide by 12 on both sides

x = 18/12 or 3/2

now replace x in the first equation with 3/2 to get

y = 4 3/2

y = 6

the answer is a

(3/2,6)

hope that .

brainliest is always apprectiated

107.141592654

step-by-step explanation: