Answer:
13/17
Step-by-step explanation:
Written in scientific notation that is:
<span>86,900.4
= 8.6x10^4</span>
Answer:C
Step-by-step explanation:
Answer:

Step-by-step explanation:
Use the acronym SOH-CAH-TOA
sin = 
So opposite is 3 and hypotenuse is 4.
tan = 
So opposite is -3 and adjacent is 4.
cos = adjacent/hypotenuse
cos = 