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Zinaida [17]
3 years ago
8

The length of a screw produced by a machine is normally distributed with a mean of 0.55 inches and a standard deviation of 0.01

inches. What percent of screws are between 0.53 and 0.57 inches?
99.7%

68%

95%

100%
Mathematics
2 answers:
Kaylis [27]3 years ago
6 0

The answer is 95 percent.

Slav-nsk [51]3 years ago
5 0
Find the relation between the range, the standard deviation and the media:

0.57 = 0.55 + 0.02 = 0.55 + 2*0.01 = media + 2* standard deviation

0.53 = 0.55 - 0.02 = 0.55 - 2*0.01 = media - 2 * standard deviation

Then, the desired range is media +/- 2 * standard deviation.

In normally distributed functions, this correspond to 95% confidence interval.

Then, the answer is the third option shown, 95%
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Describe the domain and range of y = 2(4)x+ ³ +2.
sp2606 [1]

Answer:

=13 era muy fácil yo lo hice mentalmente

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2 years ago
What is the value of the expression below when z = 2?<br> 5z^2+3z+7
Marina CMI [18]

Answer: 33

5(2)² + 3(2) + 7

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33

Hope this helps!

6 0
3 years ago
It took Sheldon 17 5/6 minutes to walk to Raj's house. The bus ride home took Sheldon 4 5/8 minutes. How many more minutes did i
MA_775_DIABLO [31]

Answer:

it will take her  13\frac{5}{24} minutes more to walk down to Raj's House

Step-by-step explanation:

It took Sheldon 17 \frac{5}{6}  minutes to walk to Raj's house

It also took Sheldon 4\frac{5}{8} minutes to use the bus.

To get the time difference between the two transport mechanisms, we subtract their different time durations.

This will be

17\frac{5}{6} - 4\frac{5}{8}=317/24

We can convert this to Mixed fractions as shown 13\frac{5}{24} minutes.

Therefore, it will take her  13\frac{5}{24} minutes more to walk down to Raj's House

4 0
2 years ago
Make a tree diagram which shows the sample space of rolling a cube with faces numbered 1-6 and flipping a fair coin. Using this
Doss [256]

Answer:

C.)  P(5, H) = 1/12

Step-by-step explanation:

8 0
3 years ago
Please help! Please explain how to do this, I am so lost.
alexdok [17]
Ok, so we know that RST is equal to 6x+12
And RST is also equal to 78 + 3x-12
so we set them equal to each other

6x + 12 = 3x - 12 + 78
And simplify
3x = 54
x = 18

Finally, we solve for the angle with 18 for x

6(18) + 12
108 + 12
120

Hope this helps
8 0
3 years ago
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