Answer: 17
Step-by-step explanation: ok so first to find the mean you add all the numbers then divide by how many numbers there is so basically 18 plus 15 plus 20 plus 15 then divide by 4 because there is 4 numbers and once you do that it is 17
Answer:
139, I am sorry if I'm wrong
Step-by-step explanation:
a1=11; d=19-11=8
a17=11+(17-1)*8=11+128=139
Answer:
There are no expressions provided in the question.
The diameter is equal to the radius multiplied by 2.
Answer:
Ok for your question 1+1. In my calculations, that is 2.
I hoped this helped have a good day :)
