The angles are supplementary so they add up to 180 degrees. The equation would be
x + 3x + 54 = 180
4x = 180-54
4x = 126
x = 31.5 degrees
1st angle is 31.5 degrees
2nd angle is 3x+54 = 148.5 degrees.
To check 148.5+31.5 = 180
I don't know what grid you are talking about so I'll just show you a different method.
The question is asking you what number is 21 70% of.
So you see what 1% is by dividing 21/70= 0.3
So if 1% is 0.3, and you want to find out what 100% (actual number) is, you just multiply 1%= 0.3 by 100
= 30
Therefore, 21 is 70% of 30.
Answer: Regular nonagon
Step-by-step explanation: In image
Volume of cylinder:
Formula: pi * r^2 * h
r = 2, h = 20
pi * 2^2 * 20
pi * 4 * 20 = 20pi
Solution: A
Answer:
y - 7 = -4 (x + 2)
Step-by-step explanation:
y - 7 = -4 (x + 2)