Sin = opposite / hypotenuse
cos = adjacent / hypotenuse
using pythagoras theorem =
adjacent = 5^2-3^2
= 16
= square root 16
=4
cos x = 4/5
Answer:
any number that can be written in fraction form is a rational number. This includes integers, terminating decimals, and repeating decimals as well as fractions. ... So, any terminating decimal is a rational number.
Step-by-step explanation:
Answer: -6x+2y=8 and y=3x
Step-by-step explanation:
they must have the same slope to be parallel and when you convert -6x+2y=8 into y=mx+b it is y=3x+4
Answer:
A=45
Step-by-step explanation:
If you take a pencil and put it in the middle of the line it looks like it could be half of the other side
180-45=135
Answer:
they are all equal side so add them up
Step-by-step explanation:
