Three balls are randomly chosen from an urn containing 3 white, 3 red, and 5 black balls. suppose that we win $1 for each white ball selected, and lose $1 for each red ball selected. if x denotes our total winnings from the experiment, then: a) what values can x take? b) what is the pmf of x? c) show that this is a valid pmf.

20+ ! come and answer quick! triangle mno is reflected over the x-axis and then translated up 4 and right 3. how can the transformation be amended such that the translation can occur before the reflection and have the image remain in the same position? a translate the pre-image down 4 and right 3 and then reflect the figure over the x-axis. b translate the pre-image up 3 and right 4 and then reflect the figure over the x-axis. c translate the pre-image up 4 and left 3 and then reflect the figure over the y-axis. d translate the pre-image down 3 and right 4 and then reflect the figure over the x-axis.

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?