A linear equation is an equation in which the highest power of the variable is always
Answer:
.
Reference angle is 
Step-by-step explanation:
Given the value of x. we have to find the correct value of cosx.

Now, we have to find the exact value of 



Now, we have to find the reference angle of
.
Since the angle
lies in second quadrant, the reference angle formula is
Reference angle=
.
=
Answer:
Step-by-step explanation:
so theres 8 red marbles, 6 blue marbles, and 6 white marbles so that makes
8 + 6 + 6 = 20 marbles in total
the probability of the marble being white is 6/20 or 3/10
so the probabilty of the marble NOT being white is 1 - (3/10) = 7/10
Answer: 
<u>Step-by-step explanation:</u>
