Answer:
read the comments i cant help you yet but if you read the comments and do what they say then i can help you
Step-by-step explanation:
Answer:
its mean
Step-by-step explanation:
I promise :)
Answer:
Nothing
Step-by-step explanation:
You can't divide by zero
The mean is not the same thing as median
mean=78+81+85+87=331
mean=331/4=82.75
median is the middle number, but you have a par set of numbers, so your median will be the middle numbers 78,81,85,87 , which are 81+85=166, 166/2=83
83 is your median
Hello :
4√2-7√2= (4-7)√2 = -3√2
