Two students are preparing for a marathon. hector ran 8 miles in 85 minutes. mario ran 6 miles in 55 minutes. who has the faster average speed?

Which best describes the strength of the correlation, and what is true about the causation between the variables? it is a weak negative correlation, and it is not likely causal. it is a weak negative correlation, and it is likely causal. it is a strong negative correlation, and it is not likely causal. it is a strong negative correlation, and it is likely causal.

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

Jose is going to use a random number generator 500500 times. each time he uses it, he will get a 1, 2, 3,1,2,3, or 44.