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vovangra [49]
2 years ago
13

WILL GIVE BRAINLIST! :)) AND 20 POINTS

Mathematics
1 answer:
abruzzese [7]2 years ago
7 0

Answer:

1. D

2. D

3. H

4. B

5. B

Step-by-step explanation:

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The diameters of bolts produced in a machine shop are normally distributed with a mean of 5.71 millimeters and a standard deviat
Harlamova29_29 [7]

Answer:

The bolts with diameter less than 5.57 millimeters and with diameter greater than 5.85 millimeters should be rejected.

Step-by-step explanation:

We have been given that the diameters of bolts produced in a machine shop are normally distributed with a mean of 5.71 millimeters and a standard deviation of 0.08 millimeters.    

Let us find the sample score that corresponds to z-score of bottom 4%.  

From normal distribution table we got z-score corresponding to bottom 4% is -1.75 and z-score corresponding to top 4% or data above 96% is 1.75.

Upon substituting these values in z-score formula we will get our sample scores (x) as:

z=\frac{x-\mu}{\sigma}

-1.75=\frac{x-5.71}{0.08}

-1.75*0.08=x-5.71

-0.14=x-5.71

-0.14+5.71=x-5.71+5.71

5.57=x

Therefore, the bolts with diameters less than 5.57 millimeters should be rejected.

Now let us find sample score corresponding to z-score of 1.75 as upper limit.

1.75=\frac{x-5.71}{0.08}

1.75*0.08=x-5.71

0.14=x-5.71

0.14+5.71=x-5.71+5.71

5.85=x  

Therefore, the bolts with diameters greater than 5.85 millimeters should be rejected.

7 0
2 years ago
A forest fire covers twice the amount of forest as it did 3 days ago. If the fire covered 300 square miles 3 days ago and it con
ruslelena [56]
98 miles squared is the answer
3 0
2 years ago
Need help!
Leya [2.2K]

9514 1404 393

Answer:

  • clockwise
  • 90°
  • origin

Step-by-step explanation:

The answer statement tells you the transformation is a rotation. The original is in the 2nd quadrant, and the image is in the 1st quadrant, representing a clockwise rotation. AB points east, while A'B' points south, a rotation of 90° (clockwise). Each image point is the same distance from the origin as its preimage point. The origin is the center of rotation.

__

∆ABC is transformed by a <u> clockwise </u> rotation <u> 90 </u> degrees with a center at the <u> origin </u>.

6 0
3 years ago
What’s the value of positive l5l ?
Lelechka [254]

Answer:

5

Step-by-step explanation:

Absolute value |x| makes any number positive.

|5| = 5

5 0
2 years ago
A group of 18 people ordered soup and sandwiches for lunch. Each person in the group had either one soup or one sandwich. The sa
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Check it out .....


hope it helps...if any trouble occurs ...punch it on face.....haha kidding.....feel free to ask me

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2 years ago
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