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?

the required function is .

step-by-step explanation:

from the given table it is noticed that the graph passing through (-3,7), (0,4), (3,1) and (8,-4).

it is a linear function because the value of y is decrease by one as the value of x increase by 1.

the slope of the function is

the slope of the function is -1 and the y-intercept is 4.

the slope intercept form is

where, m is slope and b is y-intercept.

therefore the required function is . the graph of this function is shown below.

126.66 m²

step-by-step explanation:

the pertinent area formula is a = πr², where r is the radius.

here, a = π(6.35 m)² = 40.32π, or approximately 126.66 m²

853.3

step-by-step explanation:

susie has 7 apples