Question

I have to draw my question...click on this to see the math question, please!!

Answer 1

one angle is 68 degrees

Answer 2

the hypotenus is 9

Answer 3

you have to solve the right triangle, and round each side the nearest hundreth.

Answer 4

sounds like a job for sines and cosines huh

Answer 5

would i use a^2 + b^2=c^2?

Answer 6

First, J is 180-90-68=22 degrees. Now we're going to use the law of sines, with "J,K,L" as angles and "j,k,l" as their opposite sides:
\[\begin{align}
&\frac{\sin K}{k}=\frac{\sin J}{j}\\
&=\frac{1}{9}=\frac{.37}{j}\\
j= .04
\end{align}\]
See if you can do L the same way.

Answer 7

you use \[\sin \theta = \frac{opposite}{hypotenuse}\]
and \[\cos \theta = \frac{adjacent}{hypotenuse}\]

Answer 8

Except that I typed that into my calculator wrong. j is 3.37.

Answer 9

i know the hypotenus is 9. but the opposite is a variable, k. i don't really know what sin and cos means

Answer 10

are u using a graphing calculator?

Answer 11

it's in your calculator... sin and cos

Answer 12

k

Answer 13

hello? um, can you give me a moment while i figure this out?

Answer 14

i think i need a bit more help, please

Answer 15

OK, where are you stuck?

Answer 16

i understand how sink/k = sinJ/j, but how did it equal 1/9?

Answer 17

and then, how did you get .37/j? i'm new to the graphing calculator stuff...

Answer 18

This isn't a graphic calculator thing, this is really a trigonometry issue. Have you learned sin, cos, and tan yet?

Answer 19

not yet, i'm just starting geometry this fall

Answer 20

There's no way I know of to get the other sides without trigonometric functions...anyone else?

Answer 21

could you show me the trigonometry way? i have a graphing calculator

Answer 22

You should really understand what those trig functions mean first. So here we go:

Answer 23

k