2*2*2*x=28. 8x=28. x=28/8
Answer:
Point C occurs on the line x = 1
Point D occurs on the line y = -2
The intersection of both lines occurs at the point E = (1,-2)
The difference between the x coordinates of points D and E is 1 + 1/4 units
The difference between the y coordinates of points C and E is 1 unit
Let point F be the point that is 1/4 the distance from point C to point D
To find the x-coordinate F subtract the difference between the x coordinate of points C and E from the x-coordinate of C:
1 - (1 + 1/4) = -1/4
To find the y-coordinate of F subtract the difference between the y-coordinates of D and E from the y-coordinate of C
2 - 1 = 1
The coordinates of point F are (-1/4, 1)
Therefore, the y value of the point that is 1/4th the
Answer:
-2.25
Step-by-step explanation:
We have that the mean (m) is equal to 500, the standard deviation (sd) 20
They ask us for P (x <455)
For this, the first thing is to calculate z, which is given by the following equation:
z = (x - m) / sd
We have all these values, replacing we have:
z = (455 - 500) / (20)
z = -2.25
d !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1!!!!!!!!!!!!!!!!!!!!!!!!!!!
We are given the expression B=3Mn/2 and told to express M in terms of B and n. This means that we should apply mathematical operations on both sides of the equation so we "isolate " M on one side of the equality sign. We begin with the given equation
First, we multiply both sides by 2, so we get
Next, we divide by 3 on both sides, so we get
Finally, we divide both sides by n, so we get
In this case, we have succesfully expressed M in terms of B and n
