The mean of four number is 14.if two numbers, x and x + 2 are added to the set of data, the new mean is 15.calculate the value of x

Step-by-step explanation:

Mean = Total ÷ Number of Data

Total = 14 × 4 = 56

Total after = 15 × 6 = 90

Difference = 90 - 56 = 34

Hence,

step-by-step explanation:

to find if any function is an inverse of the other, put the first equation in as x in the next one. then simplify and solve. if at the end you get the statement y = x, then it is an inverse. if you get anything else, it is not.

faster, im not sure why but i know it is faster