She toke 1hr and 17min for 3 assingment so that ur answer
Answer:
0.8
Step-by-step explanation:
A: P(1) = .6, P(2) = .5, P(1 and 2) = .3
P(1 or 2) = P(1) + P(2) - P(1 and 2) .6 + .5 - .3 = 0.8
Solution given in the attachment.
The given system is

Given that y = y, let's combine the equations

Let's solve for x

Then, we find y

The solution is (2, -3).
The image below shows the solution graphically.
Answer:
A. 53
Step-by-step explanation
You use tangent to find the angle measure of MAD.
Tan (x) = 16/12
x = 53 degrees