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krek1111 [17]
3 years ago
13

A nail manufacturer throws out nails with lengths that are not within 0.05 inch of the mean of the batch. The lengths (in inches

) of the nails in a batch are 0.42 0.53 0.55 0.48 and 0.51 which nails should be thrown out
Mathematics
1 answer:
Natasha_Volkova [10]3 years ago
7 0

Answer:

0.42  & 0.55

Step-by-step explanation:

Mean length =  0.42 + 0.53+ 0.55 + 0.48 + 0.51/5

                     =  0.498

0.42 -  0.498  =   - 0.078‬    

0.53 -  0.498  =     0.032‬

0.55 -  0.498  =     0.052‬

0.48 - 0.498  =    - 0.018‬

0.51  - 0.498  =      0.012‬

The nails to be thrown out are:

0.42  & 0.55 because their deviations from the mean are not within 0.05 inch

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What is the slope of a line parallel to the line whose equation is
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Answer:

slope = 3

Step-by-step explanation:

The equation of a line in slope- intercept form is

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Given

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- 3y = - 9x - 54 ( divide all terms by 0 3 )

y = 3x + 18 ← in slope- intercept form

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Parallel lines have equal slopes, thus

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8 0
2 years ago
This really hard help please
bonufazy [111]

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is it 4.8, I don't really know

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3 years ago
An inch is equal to about 2.54 centimeters. Write an expression who he estimates the number of centimeters in x inches. Then est
trasher [3.6K]

There are 30.48 centimeters in 12 inches.

Step-by-step explanation:

Given,

1 inch = 2.54 centimeters

For x inches;

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There are 30.48 centimeters in 12 inches.

Keywords: multiplication

Learn more about multiplication at:

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5 0
3 years ago
Approximate the zeros of the function. Round to the nearest tenth if necessary. f(x) = 4x^2 + 4x - 35. Explain each step on how
svet-max [94.6K]
4x²+4x-35=0
factor: (2x+7)(2x-5)=0
2x+7=0, or 2x-5=0
2x=-7 or 2x=5
x=-3.5 or x=2.5

I don't see any rounding necessary in this case. 

when you factor ax²+bx+c, you take the two factors of a and the two factors of c, one factor of a times one factor of c, the other factor of a times the other factors, the sum of the two products make b.
in this case, the factors of 4 is 2 and 2, the factors of -35 is -5 and 7. I line them up in the following way:
2    -5

2      7
then I multiple them diagonally, the top left 2 multiplying the bottom right 7=14, and the other 2 multiplying -5=-10, 14 and -10 make a sum of 4.

if you don't get the desired sum, switch the factors up and down till you have the right combination. Note: Do not switch left and right. 

I hope this makes sense to you.
8 0
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Answer:

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You did not give us any answer choices like a b c or d

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