Answer: The slope is 
Step-by-step explanation:
The slope can be calculated with the following formula:
Then, knowing that the line passes through the points (2,1) and (-1,-1), we can substitute the coordinates into the formula.
In this case:
Therefore, the slope of the line that passes through the points (2,1) and (-1,-1) is:
What do you have to do in that problem?
Answer:
The answer is 5
Step-by-step explanation:
I got it from goggle....your welcome
Answer:
-2.5
Step-by-step explanation:
Here in this question, we are interested in calculating the z-score for a student that had a particular mark at the test
To calculate the z-score, we need to use a mathematical formula
Mathematically;
z-score = (x - mean)/SD
From the question;
x = 76
mean = 86
standard deviation SD = 4
Plugging these values in the equation, we have;
z-score = (76-86)/4 = -10/4 = -2.5
