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Mathematics

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coldgirl [10]2 years ago

8 0

how you like it when you need help on a math problem and someone answers random things Step-by-step explanation:

KengaRu [80]2 years ago

5 0

Answer:

Step-by-step explanation:

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Would I do Pythagorean theorem?

kati45 [8]

Yes you do , i learned pythagorean theorem last year in pre-algebra

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2 years ago

Read 2 more answers

A machine operation produces bearings whose diameters are normally distributed, with a mean of 0.497 inch and a standard deviati

eduard

Mean = 0.497 in, SD = 0.003 in
Required diameter ranges between 0.496 in and 0.504 in
Anything other diameter obtained is not acceptable.

That is;
P(x<0.496) and P(x>0.504) are not acceptable.

Now,
P(x<0.496) = P(Z< (0.496-0.497)/0.003)) = P(Z<-0.33)
From Z tables, P(Z<-0.33) = 0.3707

Similarly,
P(x>0.504) = P(Z> (0.504-0.497)/0.003)) = P(Z>2.33)
From Z tables, P(Z>2.33) = 1-0.9901 = 0.0099

Therefore, unacceptable proportion = P(x<0.496)+P(x>0.504) = 0.3707+0.0099 = 0.3806 or 38.06%

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2 years ago

Claire is 2 year younger than her sister. The

natta225 [31]

Given:

Claire is 2 year younger than her sister.

The sum of ages is no less than 44 years.

To find:

Inequality and find the youngest age Claire can be.

Solution:

Let the age of Claire be x.

Her sister's age = x+2