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3 years ago

15

a tree casts a shadow that is 20 ft long. the angle of elevation of the sun is 29°. how tall is the tree?

1 answer:

mars1129 [50]3 years ago

3 0

You can use the trig ratios. Draw a diagram to see which one is appropriate.
Tan would be used.
Tan29=x/20
20Tan29=x
Put this into your calculator and see what you get

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Step-by-step explanation:

step 1

Find the equation of the function in the graph

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we know that

Is a linear function

take the points (0,6) and (6,0)

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step 2

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Let

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<em>Exchange the variables (x for y and y for x)</em>

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Isolate the variable y

$y=-x+6$

Let

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