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Anton [14]
3 years ago
14

Really easy! PLEASE HELP, I Will mark Brainliest

Mathematics
1 answer:
zlopas [31]3 years ago
7 0

Answer:

(x,y)=(-5,5)

Step-by-step explanation:

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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%
6 0
3 years ago
Twice a number decreased by 16 is 64.
Blababa [14]
16+64=80        80*2=160
or it means
64/2=32           32+16= 48
or it means
64+16=80        80/2= 40
this is a horribly  formatted question
8 0
3 years ago
2 plus 2 what is it​
frez [133]

Answer:

4

Explanation:

2+2=4

Hope this helps. :)

7 0
2 years ago
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Write out the following number is words: 3,508
IRISSAK [1]
Three thousand five hundred eight
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Which equation is equivalent to 2^4x=8^x-3?
slavikrds [6]

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D

Step-by-step explanation:

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