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Komok [63]
4 years ago
6

2. According to the Sleep Foundation, the average night’s sleep is 6.8 hours (Fortune, March20, 2006). Assume the standard devia

tion is .6 hours and that the probability distribution is normal. a. What is the probability that a randomly selected person sleeps more than 8 hours
Mathematics
1 answer:
jasenka [17]4 years ago
3 0
Lol idk but someone will eventually figure it out
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Find the product of (4x - 3 ()2x^2 - 7x + 1)
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Asked and answered at brainly.com/question/8532103
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4 years ago
Gabriel went shopping for a new camera. The listed price of the camera was $37, but the price with tax came to $40.33. Find the
torisob [31]

3.33%

Step-by-step explanation:

40.33-37=3.33

3.33/100=0.0333

0.0333 as a percent is 3.33

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3 years ago
How may time can 14 go into 28?
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14 goes into 28 2 times.
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3 years ago
*I thought of a number, added 18, then multiplied the result by 8. I got 16. What was my number?
Arte-miy333 [17]

Answer:

-16

Step-by-step explanation:

Represent the number by n.

Then:

8(n + 18) = 16

Performing the indicated multiplication, we get:

8n + 144 = 16

Subtracting 144 from both sides results in 8n = -128.

Dividing both sides by 8:  n = -128/8  =  -16

The number was -16.

4 0
4 years ago
Find the weight of the cast iron shape shown below at 0.26 pounds per cubic inch. (round to the nearest pound). The height of th
weqwewe [10]

Answer:

<u>640 pounds </u>

Step-by-step explanation:

The rest of the question is the attached figure

So, the total volume = V(cylinder ) + V(cone)

The volume of cylinder = π r² h

The volume of cone = π r² h/3

Both of the cylinder and the cone have the same diameter = 14 inches

So, the radius = 14/2 = 7 inches

The height of the cylinder is 13 inches and the height of the cone is 9 inches.

So, The volume of cylinder = π r² h = π * 7² * 13 = 2,001.2 in³

And The volume of cone = π r² h/3 = π * 7² * 9/3 = 461.8 in³

So, the total volume = 2,001.2 + 461.8 = 2,463 in³

So, the total weight = 0.26 pounds per cubic inch times the total volume

                                = 0.26 * 2463 = 640.38 pounds

                                = <u>640 pounds (to the nearest pound)</u>

6 0
3 years ago
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