Answer:
3.6
Step-by-step explanation:
Z = (x - m)/s
z = (38-40)/8
z = -2/8
z = -1/4
z = -0.25
The z score is -0.25
Answer:
14n-29
Step-by-step explanation:
Remove the unnecessary parenthesis around the (2n-9)
(2n-9)-5(-2.4n+4)
Distribute the -5 into the -2.4n+4
2n-9-5(2.4n+4)
2n-9+12n-20
Combine like terms
2n-9+12n-20
14n-9-20
14n-29
Answer:
The equation in the slope-intercept form will be:
Step-by-step explanation:
Given the points
Finding the slope between the points using the formula




We know that the point-slope of the line equation is

substituting
and (-39,49) in the equation


Now writing the equation in slope-intercept form

where m is the slope and b is the y-intercept






∵ 
Where
and the y-intercept i.e. 
Therefore, the equation in the slope-intercept form will be:
Answer:
90% Solution
Step-by-step explanation:
5% of 90 + 90% of x = 75% of (90 + x)
5×90/100 + 90x/100 = 75×90/100 + 75x/100
Or 90x/100 - 75x/100 = 75×90/100 - 5×90/100
Or 15x/100 = 90×70/100
Or X = 420ml
You Will Need ML Of The 90% Solution To Obtain ML Of The Desired 75% Solution.