Consider an 9-by-9 board and nine rooks of which five are red and four are blue. suppose you place the rooks on the board in nonattacking positions at random. what is the probability that the red rooks are in rows 1,3,5,7, 9? what is the probability that the red rooks are both in rows 1,2,3,4,5 and in columns 1,2,3,4,5?

what is the question? i am guessing you are looking for the area.

to find an area, you have to do length x width.

in this case, it would be 12 ft x 4 ft = 48 sq. ft

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: