Discussion Topic The science of physics, specifically waves and harmonics, goes hand in hand with the
mathematics of trigonometry. We need trigonometry to model the path of a wave traveling
through the air or water.
Describe another connection between a math topic and a non-math topic, where the math
topic is needed to explain and model the non-math topic.

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.

sina-sinb

cosb+cosa

tana-tanb

cos0+cos x pi/3

20tan

step-by-step explanation:

1.) 21

2.) 0.453

3.) 1.5

4.) 48

5.) $ 22

step-by-step explanation: