Question

Help?
If the distance from the top of the building to the tip of its shadow is 50 feet, what is the length of its shadow? What function would i use?

Answer 1

Remember your trig functions

Answer 2

Using the information given, determine which function to use to solve for the length of the shadow.

Answer 3

sine?

Answer 4

Yup :)

Answer 5

Sine75=0.9 :)

Answer 6

0.9*100

Answer 7

= 90 :)

Answer 8

So 90 would be my answer right?

Answer 9

Where did you get 0.9 from?

Answer 10

sine75=0.9

Answer 11

Wait sorry I said 100 instead of 50!

Answer 12

yup! now you got it! And what did you get?

Answer 13

45:)

Answer 14

That's correct, however; you shouldn't round so early. \[\sin(75 ^{o})\] is actually ).965926 and when you multiply that by 50 ft your answer should be 48.2963

Answer 15

so next time just plug \[50\sin (75^{o}) \] all in your calculator :)