X: -4, -2
Y: 2, 3
When you plug -4 and 2 it looks somewhat like this, 4(2)-2(-4)= 8+8+16. Then -2 and 3 would look something like this, 4(3)-2(-2)= 12+4=16.
36° ( option C)
please see the attached picture for full solution
hope it helps..
Good luck on your assignment...
The answer is D, pi is irrational
You can look for some proofs on the internet
Answer:

Step-by-step explanation:
Using SOHCAHTOA, you know that Cosine is represented with the side adjacent to the angle (7) on top of the fraction and the hypotenuse (25) on the bottom.
Answer:
25,120 sq. metres
Step-by-step explanation:
Find the diagram attached
Lateral surface area = πrl
r is the radius
l is the slant height
Given
r = 160/2 = 80m
l = √r²+h²
l = √80²+60²
l = √6400+3600
l = √10,000
l = 100cm
Lateral surface area = 3.14 * 80 * 100
Lateral surface area = 25,120 sq. metres