Answer: -15
Step-by-step explanation:
Let the unknown number be 'x'
Using the statement we can form the equation:
4 + x = -11
Now, solve the above equation to get :
4 + x = -11
x = -11 -4
x = -15
The number is -15. To check our answer, substitute for x :
4 + (-15) = -11
4 - 15 = -11
The above equation is correct. Therefore, the number is -15.
Answer:
the interquartile range is 7
Answer:
(A)
Step-by-step explanation:
Given the trend line which goes through (2, 79) and (12, 24).

The equation which can be simplified to find the slope of the trend line in the scatterplot is 
The correct option is A.
In order to find it out , you need to calculate :
180 - 76 - 38
= 66
hope this helps
If Micael is 2 years older than sam and sam is 15 than than micael is 17