3 years ago

Question and answer is in the picture

1 answer:

7 0

Answer:
A
Explanation:
To find the slope you can use the formula Y2-Y1/X2-X1.
Select two points. (-5,6) and (5,2).
Plug these in:
2-6/5-(-5).
You get -4/10.
Reduce.
-2/5.
To find the Y-intercept, just find there the line crosses the Y-axis. In this case it would be 4.
Hence the answer being: y=-2/5x+4

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Romashka-Z-Leto [24]

Wouldn’t that just be infinitely?

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3 years ago

A surveyor standing on top of a cliff found that the angle of depression of a boat as sea is 22°. if the top of the cliff is 15m

Alex73 [517]

Answer:

From the photo above i interpreted the question and drew a triangle to make it easier to solve

Tan is used to solve the question as we were given opposite (as height of the cliff) and to find Adjacent ( the distance between the foot of the cliff to the boat)

Tan θ =Opp/Adj

Tan 22°=15/a

Cross Multiply

aTanθ=15°

Divide both sides by Tan 22

aTan22/Tan22 = 15/Tan 22

a = 15/Tan 22°

a = 37.13 m

Therefore the distance between the foot of the cliff to the boat is 37.13 metres