Answer:
c. 13.9 and 14.1
Step-by-step explanation:
We know that the distribution of the sample of outside diameters of PVC pipes is normal so, the empirical rule can be applied to this data. We have to find 68% percent of the data falls in what data values. These data values can be found through empirical rule as empirical rule states that 68% or 0.68 of the data occurs inside one standard deviation.
The mean μ is 14 inches and standard deviation σ is 0.1 inches.
μ-σ=14-0.1=13.9 and μ+σ=14+0.1=14.1.
Thus, 68% of outside diameter falls between 13.9 and 14.1 inches.
Volume of the whole cuboid is 7×3×2 which is 35
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Answer:
BI=27%
Step-by-step explanation:
x(the precentage of 55 from 75)
75x=55
x=55/75
x=0.73
55 is 0.73 of 75
0.73*100=73%
100%-73%=27%
Answer:
25
Step-by-step explanation:
y + ( - 16 ) = 9
y - 16 = 9
Add 16 on both sides,
y - 16 + 16 = 9 + 16
y = 25