Inda boardman, inc., an equipment manufacturer in boston, has submitted a sample cutoff valve to improve your manufacturing process. your process engineering department has conducted experiments and found that the valve has a mean (mu) of 9.00 and a standard deviation (sigma) of 0.05. your desired performance is mu = 9.00 plus or minus3 standard deviations, where sigma = 0.060.

a

step-by-step explanation:

8

step-by-step explanation:

an = 22 + (n-1) *6

110 seats

step-by-step explanation:

an=a1+(n-1)(d)

a1 = 22   this is the first item in the sequence

d =6   this is how the sequence goes up

a)   an = 22 + (n-1) *6

b) a12 = 22 + (12-1) *6

    a12 = 22+11*6

  a12 = 22 +88

  a12 = 110

1st integer x

2nd integer x+1

3rd integer x+2

4th integer x+3

x+x+1 +x+2+x+3 =74

combine like terms

4x+6 = 74

subtract 6 from each side

4x = 68

x = 17

the integers are 17,18,19,20