In past years, the average time that it takes for a woman to complete the san francisco marathon was 4.62 hours. this year the average time for the 3845 women who finished the sf marathon was 4.59 hours with a standard deviation of 1.11 hours. can it be concluded that this years average time for women to finish the sf marathon is statistically significantly less than the past years' average time?

the probability is 0

answer: 1, 3 and 5 are correct

step-by-step explanation:

answer: on graphs, the open and closed circles, or vertical asymptotes drawn as dashed lines us identify discontinuities.

as before, graphs and tables allow us to estimate at best.

when working with formulas, getting zero in the denominator indicates a point of discontinuity.

when working with piecewise-defined functions, check for discontinuities at the transition points where one piece ends and the next begins.

step-by-step explanation:

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.