How do you solve sin40º = 12/y?

1 Answer
Oct 22, 2015

y~~ 18.6686859223

Explanation:

You're going to have to use a scientific calculator for this one, since sin40º is an irrational number. Here's how I would solve for y:

[1]color(white)(XX)sin40º=12/y

[2]color(white)(XX)ysin40º=12

[3]color(white)(XX)y=12/(sin40º)

*Solve using a scientific calculator.

[4]color(white)(XX)color(red)(y~~ 18.6686859223)