The track team ran a 100 meter sprint. Their times are shown in the table. 9.8 10.412,1 9,4 10.1 10.0 11.1
10.9 10.9 9.3 12.0 9.6 9.9 12.5
Rounded to the nearest tenth of a second, what is the mean 100-meter sprint time of the team?
A 10.1 seconds
B.10.23 seconds
c .10.6 seconds
D 10.9 seconds

What is the equation of this graphed line? enter your answer in slope-intercept form in the box.

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?

I’ve been trying all day to figure this puzzle out. i need the work for it aswell. it is a factoring polynomials tarsia. the image is below.