Here is some data about a group of boys and a group of girls. Boys: number: 20
mean height: 1.55 m
range of heights: 0.42 m

Girls: number: 10
mean height: 1.40 m
range of heights: 0.36 m

For the combined group of boys and girls, work out, if possible:
a the number of children
b the mean height
c the range of heights.​

the discriminant is 64 + 4*1*12 = 112

this is prime.

step-by-step explanation:

nothjing

step-by-step explanation:

the smallest possible measurement of the width is 14 feet

step-by-step explanation:

let's assume length of parallelogram is 'l'

width of parallelogram is 'w'

the perimeter of a parallelogram must be no less than 40 feet

so, we get

we are given

length of parallelogram is 6 feet

so,

l=6

we can plug it

now, we can solve for w

subtract both sides by 12

divide both sides by 2

and we get

so,

the smallest possible measurement of the width is 14 feet