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Korvikt [17]
3 years ago
7

Someone help me with this geometry homework please

Mathematics
1 answer:
marshall27 [118]3 years ago
7 0
Look at the attached files.

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At one university, the mean distance commuted to campus by students is 19.0 miles, with a standard deviation of 4.2 miles. Suppo
Mrrafil [7]

The average commute for 95% of the students is between 19.0 and 4.2 miles.

The average distance is 19 miles.

Therefore, the standard deviation is 4.2 miles.

A) 2.7 = 19 - a(4.2)

where;

a deviates from the mean by a certain number of standard deviations. Thus;

a = (19 - 2.7) ÷ 4.2

a = 3

In a normal distribution, 3 standard deviations from the mean indicate that 95% of the data falls within that range.

B) The data are 2 standard deviations apart from the mean at the 95% confidence level. Thus;

CI = 19 ± 2(4.2)

CI = (18 - 10.2) OR (18 + 10.2)

CI = (7.8, 28.2)

Learn more about confidence intervals at

brainly.com/question/17097944

#SPJ4

8 0
2 years ago
Write in a standard form.
PSYCHO15rus [73]

Answer:

16.403

22.312

Step-by-step explanation:


7 0
4 years ago
Read 2 more answers
At 5:00 on june morning , the temperature was 62.4.By 2:00 the afternoon , the temperature had risin 21.7 . what was the tempera
Ivahew [28]
I think it's 84.1 (degrees). Hope this helps you
6 0
3 years ago
Owning a small and successful business isn't easy! There is a monthly cost of shipping supplies and
andriy [413]

Answer:

C(x)=24,000+19,200x

Step-by-step explanation:

<u>Mathematical Modeling</u>

To model a real-life situation, a mathematical model can be constructed in such a way it accurately represents the variables measured in the system.

This problem requires to build a model for the yearly cost of a small and successful business.

The first data is the fixed monthly cost or the money the owner must pay regardless of the number of employees he hires. This cost includes shipping supplies and products for $2,000. To operate for a full year, the fixed cost is 12*$2,000=$24,000.

The other component of the cost function is the variable cost of x employees. Given each employee costs $1,600 each month, having x employees cost 1,600x each month. For a full year, the variable cost will be

12*1,600x=19,200x.

We finally form the total cost function:

\boxed{C(x)=24,000+19,200x}

7 0
3 years ago
Solve for the zeroes of the equation.<br> 0=16t^2-50t-14
alexira [117]
This equation does not have any zeros. Use the formula of (b*b)-4(a)(c).
8 0
4 years ago
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