HEL ASAP The keyboard life is normally distributed with a mean of 8 years with standard deviation
1.8 years.
The manufacturer will replace any such keyboard that wears out during the guarantee period.
The life of such keyboard is normally distributed.

a) If the guarantee period is 6 years, what percent of such keyboard will the manufacturer have to
replace?
b) How long should the guarantee run if the manufacturer wishes to replace no more
than 4.01% of keyboards?

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

125 yards

step-by-step explanation:

i take 75 plus 50.

the answer is 1030 it's very simple math.