Answer:
m= -16
Step-by-step explanation:
you would add 19 to -35 because you are trying to isolate the variable m.
Answer:
The 95% confidence interval is "87.94, 91.86".
Step-by-step explanation:
The given values are:
Sample batches,
n = 25
Sample mean concentration,
= 89.9 mg
Amount of chemical,
σ = 5
α = 0.05
The critical value from Z table will be:
= 
= 
= 
Now,
The confidence interval will be:
= 
On substituting the values, we get
= 
= 
= 
Lower limit will be:
= 
= 
Upper limit will be:
= 
= 
First divide the 2nd equation by -3
3x+3y=10
same as other
they are the same line
so the solution is where they intersect
they are the same line
the intersection points are the points on the line
the solution is 3x+3y=10, that's all the points that satisfy the system
M=4
Point Slope Form- y-1=4(x+2)
Slope Intercept Form- y=4x+9