Question

cosine question!

Answer 1

How would i draw this and label it? thats all i need help wtih

Answer 2

does that help?

Answer 3

s= d/t (=) d = s*t

don't forget that the angle to northeast is 45º

This helps you?

Answer 4

so what are the sides? and the angle would be 45? right?

Answer 5

@e.mccormick do you have an idea?

Answer 6

s = d/t

d1 = s*t = 42*1 = 42 miles
d2 = 42*0.5 = 21 miles


21cos(45) = 14.85
21sin(45) = 14.85



how far is he from its first position???

.: sqrt( (42+14.85)^2 + (14.85)^2 ) = 81.76 miles

Answer 7

@Mertsj

Answer 8

TeenaMathew is this a trig exercise?

Answer 9

yes its the law of cosines

Answer 10

then the graph is really all you need :), if the outside angle made is 45degrees, what would be the adjacent one? or its complimentary

Answer 11

actually im sorry it is a precalc question..nothing to do with graphs...just problem solving

Answer 12

tis ok, trig is before precalc anyhow