Answer:
49°
Step-by-step explanation:
Line ED is 180°, so you can subtract 180 - 67 to find the value of ∠ACB, which is 113°. Since the angles of a triangle will always add up to 180°, you just need to subtract 180 - 18 - 113. This will get you 49°.
Answer:
median: 6 ; mean: 13.5
Step-by-step explanation:
The median is where you line up the numbers from least to greatest and add the 2 that are left since it was an even number and you get 6. The mean is where you add all 8 numbers and divide by 8, since that is how many numbers there are.
Answer:
i think it's circumference
Step-by-step explanation:
2x - 6y = 14
2x = 6y + 14
x = 3y + 7.....so sub in 3y + 7 for x in the other equation
4x - y = 9
4(3y + 7) - y = 9
12y + 28 - y = 9
12y - y = 9 - 28
11y = - 19
y = -19/11
x = 3y + 7
x = 3(-19/11) + 7
x = -57/11 + 7
x = -57/11 + 77/11
x = 20/11
solution is : (20/11, -19/11) <==
