Willie runs 3 miles in 33 minutes. if willie runs at the same rate, how many miles can he run in 143 minutes?

Which is the correct excel formula for the 80th percentile of a distribution that is n(475, 33)? =norm.dist(80,475,33,1) =norm.inv(0.80,475,33) =norm.s.inv((80-475)/33)?

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12

X/y + 4y/x divided by x/y - 2y/x explain as in depth as you can how you simplfied the fractions. i don't know where to start on this : /