Question

what is the measure of angle C in the triangle below?

Answer 1

Remember when you have "triangle below" make sure you post up the triangle.

Answer 2

@YanaSidlinskiy

Answer 3

@MeganChase please help??

Answer 4

Are you suppose to use the quadratic formula?

Answer 5

I think so

Answer 6

The answer choices are A.58.1 B.31.9 C.27.8 D.40.3

Answer 7

Use the law of Sines:

a/sinA =b/SinB=c/SinC

Each Lowercase letter is a side

Each Uppercase case letter is an angle

If you need to find and angle

You do a/SinA =b/SinB(unknown angle)

A corresponds to a, and so on

Answer 8

Gotta tag this guy again.... @johnweldon1993 My brain isn't working anymore..

Answer 9

So from my previous reply, you apply it and you get 28/SinC =53/Sin90

Cross multiply: 28*Sin90=53*SinC

This all equals to 28/53=SinC

Then get rid of Sin from the right side and by doing that you have to multiply it by Sin^-1() on the right AND the left side
So Sin^-1(28/53) should be 31.89 degrees

Answer 10

oh my gosh thank you so much @crazyjulian123

Answer 11

Do you think you could help me with one more problem? @crazyjulian123

Answer 12

What is the value of cos(12) to the nearest ten-thousand?

Answer 13

.9781 it the value to the ten thousands place

Answer 14

What is the value of sin(42) to the nearest ten-thousand? @MeganChase

Answer 15

.6691

Answer 16

Can I ask you one more? its the last one I promise :) Simplify the radical expression. √72x^2 @MeganChase

Answer 17

ok. wait a second.

Answer 18

√72x² = √(36•2•x²) = √6²x² = 6x

Answer 19

is that all?

Answer 20

Sorry for late response. Use a calculator! It is your best friend for Math!