At a wedding​ reception, the bride and groom and nine attendants will form a receiving line. How many ways can they be arranged in each of following​ cases? ​a) Any order will do.
​b) The bride and groom must be the last two in line.
​c) The groom must be last in line with the bride next to him.

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

noncoplanar points are points that do not lie on the same line.

“ a line segment that has the endpoints on the circle and passes through the midpoint is called the diameter. the diameter is twice the size of the radius. a line segment that has its endpoints on the circular border but does not pass through the midpoint is called a chord. a circle is the same as 360 small circle up the number 0 . i hope this .