So try to get the x term to one side by itself
add 21 to both siede
3x+28=5x
subtract 3 x from both sides
28=2x
divide 2
14=x
The mean of this dataset is: 6
Answer:
5
Step-by-step explanation:
a²+b²=c²
In this case c is 13 and b is 12
a²+12²=13³
a²+144=169
Subtract 169 and 144 to find a
169-144=25
The square root of 25 is 5
Y = -2/3x + 3
That’s the equation
Answer:
n= 69 degrees
Step-by-step explanation:
total inside measure of any triangle is 180 degrees
180= n+n+42
180= 2n+ 42
2n= 180-42
2n= 138
n=69
