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bezimeni [28]
3 years ago
8

A piece of aluminium has a volume of 7.0cm^3 density of 3.50g\cm^3 what is its mass????

Mathematics
1 answer:
ale4655 [162]3 years ago
4 0
Density=mass / volume  ⇒ mass=density x volume.

Data:
density=3.5 g/cm³
volume=7.0 cm³

mass=(3.5 g/cm³)(7.0 cm³)=24.5 cm³

<span>answer: 24.5 cm</span>³
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3 years ago
Motorola used the normal distribution to determine the probability of defects and the number
vovangra [49]

Answer:

a.P<x<9.85 orx>10.15)=0.3174, Total defects=317.4

b.p=0.0026,total defects=2.6

c.Less of the items produced will be classified as defects.

Step-by-step explanation:

a.The standard score,z, is esentially x reduced by process mean then divided my process standard deviation.

\mu=10,\sigma=0.15\\Therefore:-\\z=\frac{x-\mu}{\sigma}=\frac{9.85-10}{0.15}\approx-1.0\\z=\frac{x-\mu}{\sigma}=\frac{10.15-10}{0.15}\approx+1.0\\P(x10.15)=P(Z+1.0)\\=2P(Z

Total defects=Production*Probability

                      =0.3174*1000

                       =317.4

b. \mu=10,\sigma=0.05

therefore:-

z=\frac{x-\mu}{\sigma}=\frac{9.85-10}{0.05}\approx-3.0\\z=\frac{x-\mu}{\sigma}=\frac{10.15-10}{0.05}\approx+3.0\\\\=P(x10.15)=P(Z+3.0)\\=2P(Z

Defects=Probability*Production

            =0.0026*1000

             =2.6

c.Reducing process variation results in a significant reduction in the number of unit defects.

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3 years ago
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shusha [124]

Answer:

k = 15

Step-by-step explanation: pls thank me and mark me brainliest :3

4 0
3 years ago
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