A committee of eight congressman will be selected from a group of 11 Democrats and seven Republicans. Find the number of ways of obtaining a committee with exactly 3 Democrats.

3,465

Step-by-step explanation:

Given, Number of Democrats= 11

Number of Republicans = 7

Total persons in the group  =18

Number of congressman will be selected from the group = 8

Now , according to the combinations , the number of ways  of obtaining a committee with exactly 3 Democrats.= (3 Democrats , 5 Republicans)

Hence, the number of ways of obtaining a committee with exactly 3 Democrats. = 3,465

y=mx+b

step-by-step explanation:

m is slope, b is y-intercept

$4034.40

the perimeter of the field is the sum of the lengths of the four sides:

47 yd + 158 yd + 47 yd + 158 yd = 410 yd

the cost of 3 ft (1 yd) of fence is 3×$3.28 = $9.84.

so the cost of jake's wood perimeter fance is

(410 yd) × ($9.84 /yd) = $4034.40