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Tema [17]
3 years ago
10

Problem 9-10 The elongation of a steel bar under a particular tensile load may be assumed to be normally distributed, with a mea

n of .06 in. and standard deviation of .008 in. A sample of n=100 bars is subjected to the test. Find the probability that the sample mean elongation is between .0585 in. and .0605 in.
Mathematics
1 answer:
aliina [53]3 years ago
7 0

Answer:

The answer is 0.7036.

Step-by-step explanation:

Check the attached file for the computations.

Download pdf
<span class="sg-text sg-text--link sg-text--bold sg-text--link-disabled sg-text--blue-dark"> pdf </span>
46d11abaad363adf9d23c0de93a886ed.png
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The diameter of a circle is 6 centimeters. What is the circle's area?<br><br> Use 3.14 for pi
Lynna [10]

Step-by-step explanation:

diameter=

2 \times\pi \times r = 6 \\ r =  \frac{6}{2 \times 3.14}  = 0.955 \\ area = \pi \times  {r}^{2}  = 3.14 \times  {0.955}^{2}  \\  =  2.87\:  {cm}^{2}

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3 years ago
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Write 8256 correct to 3 significant figures.
konstantin123 [22]

Answer:

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Step-by-step explanation:

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3 years ago
How do I do this ahh!?
NISA [10]
Just scan it, there’s an answer for it already I’m pretty sure
3 0
3 years ago
In a square,the sum of the length of three sides is 48 and in a rectangle the difference between a length and width is 7 in if a
kap26 [50]

Answer:

23

Step-by-step explanation:

The sides of a square are all the same length, so if 3 of them total 48, one of them must be 48/3 = 16.

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8 0
3 years ago
Please help me ive been stuck on this question for days! Thank you
Zielflug [23.3K]
Okay, so this is basically telling you that there is no solution. You don't have to worry about there being one. You just have to justify (or explain) why there isn't one.

Basically, neither y or x is equal to anything. You couldn't make x equal to a value in y because x and y are both together in the equation and equal to numbers. 

We can always move a factor to the other side. So,

x-2y= -8

Add 2y to the other side.

x= -8+2y

Now, plug in -8+2y as x.

3(-8+2y)- 6y=-12

-24+6y-6y= -12

The 6y's cancel out. So, we can't figure out what y is.

-24=-12 <- no y.

These two lines are 
parallel. They have direct proportion in each other. That is why there is no solution because the lines never cross. Parallel lines do not cross. 

I hope this helps! 
~kaikers


6 0
3 years ago
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