Number line with open circle on 9 and shading to the left. which of the following inequalities best represents the graph above? x < 9 x > 9 x ≤ 9 x ≥ 9

Determine the mean and variance of the random variable with the following probability mass function. f(x)=( 729divided by 91) (1 divided by 9) superscript x baseline comma x equals 1,2,3 round your answers to three decimal places (e.g. 98.765).

What is the length of the segment, endpoints of which are intersections of parabolas y=x^2− 11/4 x− 7/4 and y=− 7 /8 x^2+x+ 31/8 ?

Sara made $253 for 11 hours of work. at the same rate how much would he make for 7 hours of work?