Μ = x(bar) + or - 1.96(0.5)
= 5 + or - 0.98
5-0.98 =< μ =< 5 + 0.98
4.02 =< μ =< 5.98
The average size the pearls from the new bed must be so that the company
has 95% confidence that the new mix leads to bigger pearls is 5.98 mm
Https://www.youtube.com/watch?v=zsEC8A_3QXw
The side of the triangle is 13 inches
Side of square. 6 inches
X= side of square
4x+15 =3(x+7)
4x+15=3x+21
x=6
6+7= 13
Perím square 6x4= 24
Perim triangle 13x3=39
39-24=15
First multiply 12 by 8 to get 96
that is the total amount of seats including the broken ones. then multiply 3 by 4 to get the section of broken seats. 3 being the amount of rows that have broken seats an 4 is the amount of broken seats per row. you wind up with 12 broken seats.
Now subtract 12 from 96 to get 84 functional seats
1: 11/12
2: B
3: B
4: Can't answer this with out drawing.