<span>Work out the Mean (the simple average of the numbers)Then for each number: subtract the Mean and square the result.Then work out the mean of those squared differences.<span>Take the square root of that and we are done!</span></span>
Answer:
the solution to the system is (1,3)
Step-by-step explanation:
x = 1 , y = 3
Answer: 45
Step-by-step explanation:
Answer:
I had it before and it is 15 ft²
