Answer:
x = 8
Step-by-step explanation:
Since < A and < B are vertical angles, then it means that they have the same measure.
Given that m < A = (3x - 21)°, and m < B = (2x - 13)°:
We can set up the following equation to solve for the value of x:
m < A = m < B
(3x - 21)° = (2x - 13)°
3x - 21 = 2x - 13
Subtract 2x from both sides:
3x - 2x - 21 = 2x - 2x - 13
x - 21 = -13
Add 21 to both sides to isolate and solve for the value of x:
x - 21 + 21 = -13 + 21
x = 8
We must verify if we have the correct value for x by plugging in 8 into the equality statement:
(3x - 21)° = (2x - 13)°
[3(8) - 21]° = [2(8) - 13]°
(24 - 21)° = (16 - 13)°
3° = 3° (True statement. This means that we have the correct value for x).
Therefore, the value of x = 8.
Please mark my answers as the Brainliest, if you find this solution helpful :)
Answer:
3x-4y-9
Step-by-step explanation:
Combine like terms
GCF - Greatest Common Factor
The numbers with a GCF of 2:
2 & 4, 2 & 8, 26 & 46...
LCM -Least Common Multiple
Numbers with an LCM of 60:
15 & 4, 12 & 5...
Hope it helps! :-)
Answered by
Answer:
1
Step-by-step explanation:
It doesn’t make any difference whether or not the data is grouped, the mean is the same. So b. false.
