Question

Find the value of x. Round to the nearest tenth. The diagram is not drawn to scale

Answer 1

@Opcode

Answer 2

@hba

Answer 3

@amistre64

Answer 4

which trig function would you use with the information given?

Answer 5

wouldnt you use cosine?

Answer 6

start out by writing down the 3 basic trig functions for me ...

Answer 7

well there are sine and cosine i know for sure

Answer 8

good, and also tangent.

how do we define them in terms of the sides of a triangle? using opposite, adjacent, and hypotenuse ...

Answer 9

tangent and cotangent?

Answer 10

in not sure to be honest

Answer 11

then that is what you need to work on.

sin = opp/hyp

cos = adj/hyp

tan = opp/adj

given these 3 basic trig functions, which one uses the information given?

Answer 12

you might wanna use words that you like :) i tend to use over, next.to, and slant becasue they sound less babbley

Answer 13

So this triangle i would use tangent then?

Answer 14

correct

tan(a) = over/next.to , lets fill in whats given

tan(15) = x/12

how do we move this about to get x all alone?

Answer 15

i have a quetion first. where and how do you get 15?

Answer 16

i have old eyes :) i read the 12 and 35 together and saw 15

Answer 17

oh ok lol so it would be tan(35)=x/12?

Answer 18

yes, then its just a little algebra to solve for x

Answer 19

so then i would multiply 12 and 35 together?

Answer 20

you are on the right track, but lets clarify that alittle

12 * tan(35) = x

you need a table or calculator for the tan(35) part

Answer 21

oh ok let me see

Answer 22

so it would be 8.40249045851651735

Answer 23

and rounding to the nearest tenth would be 8.4

Answer 24

correct

Answer 25

ok so that would be x then?

Answer 26

lets see.

12*tan(35) = x

8.4 = x

yep, im pretty sure that completes it :)

Answer 27

ok thank you so much would you be able to help me with one more?

Answer 28

prolly not, ive got a class starting soon

Answer 29

oh ok well thank you for your help i appreciate it!

Answer 30

good luck :)