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2 years ago

help please!! i have 20 minutes left to do this and I don't get the rest :( please answer the 3 of them !!

Mathematics

2 answers:

bonufazy [111]2 years ago

7 0

Answer:

1st question answer is 10cm2

2nd question answer is 1368 in2

3rd question answer is 45 in2

Step-by-step explanation:

1st question explanation is 16+ 24 = 40

2nd question explanation is 19 x 8 x 9 = 1368

3rd question explanation is 8 x 2 1/4 x 2 1/2 = 45

DON'T COMPLAIN IF WRONG!

andre [41]2 years ago

3 0

Answer:

5) 40 square cm

6) 1368 cube in

7) 50 cube in

Step-by-step explanation:

ill explain later if you want me to :)

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Answer:

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Step-by-step explanation:

From the question we are told that

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The lower specification is $LSL = 1.52 \ mm$

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Now what min means is that the value of CPk is the minimum between the value is the bracket

substituting value given in the question

$Cpk = min[ \frac{1.68 - 1.6 }{ 3 * 0.03 } , \frac{1.60 - 1.52 }{ 3 * 0.03} ]$

=> $Cpk = min[ 0.88 , 0.88 ]$

$Cpk = 0.88$

Now from the question we are asked to evaluated the value of standard deviation that will produce a capability index of 2

Now let assuming that

$\frac{\mu - LSL }{ 3 * \sigma } = 2$

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=> $0.08 = 6 \sigma$

=> $\sigma = 0.0133$

$\frac{ 1.68 - 1.60 }{ 3 * 0.0133 }$

=> $2$

Hence

$Cpk = min[ 2, 2 ]$

$Cpk = 2$

So $\sigma = 0.0133$ is the value of standard deviation required

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