127 minus 55 = 72
72 divided by 12 = 6
He can buy 6 shirts.
Answer:
I think the answer is 1/2 but dont take my word
Answer:
Step-by-step explanation:
If x=9, then x^2=81, because 9*9=81. -x^2=81, because -9*-9=81, and (-x)^2=81, because -9*-9=81.
If x=6, then x^2=36, because 6*6=36. -x^2=36, because -6*-6=36, and (-x)^2=36, because -6*-6=36.
Answer: 0.7071
Step-by-step explanation:
The first thing to do is to calculate the R² which is the coefficient of determination. This will be:
= 1 - SSE/SS Total
= 1 - 600/1200
= 1 - 0.5
= 0.5
Then, the correlation coefficient will be:
= ✓0.5
= 0.7071