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IRINA_888 [86]
2 years ago
13

#6 Larry works 15.5 days for a total of 131.75 hours. How many hours did he average per day?​

Mathematics
1 answer:
emmasim [6.3K]2 years ago
3 0

Answer:

Around 8.5 hours.

Step-by-step explanation:

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Five students visiting the student health center for a free dental examination during National Dental Hygiene Month were asked h
Andrews [41]

Answer:

[0.9 months, 32.69 months]

Step-by-step explanation:

The mean is

\bf \bar x=\frac{5+17+12+21+29}{5}=16.8

The standard deviation is

\bf s=\sqrt{\frac{(5-16.8)^2+(17-16.8)^2+(12-16.8)^2+(21-16.8)^2+(29-16.8)^2}{5}}=8.1092

Now, we have to find two values a and b such that the area under the Normal curve with mean 16.8 and standard deviation 8.1092 between a and b equals <em>95% = 0.95 </em>

Using a spreadsheet we find these values are

a = 0.906

b = 32.694

<h3>(See picture) </h3>

and our 95% confidence interval for the mean number of months elapsed since the last visit to a dentist for the population of students participating in the program rounded to two decimal places is

[0.9 months, 32.69 months]

4 0
3 years ago
Find the volume of the composite solid. Round your answer to the nearest tenth.
elixir [45]

Answer:

Nasaan ang boung question

Ay

Step-by-step explanation:

Is 2,4,6,7,9,10

Yan ang nearest tenth

Pinag aralan namin Yan

I hope I help you

4 0
3 years ago
Can someone help me on this question?
notsponge [240]

Answer:

x = 19.6

Step-by-step explanation:

By applying cosine rule in ΔBCD,

cos(30)° = \frac{\text{Adjacent side}}{\text{Hypotenuse}}

              = \frac{BC}{BD}

\frac{\sqrt{3}}{2}=\frac{BC}{16}

BC = 8\sqrt{3}

Now, by applying sine rule in ΔBAC,

sin(45)° = \frac{\text{Opposite side}}{\text{Hypotenuse}}

\frac{1}{\sqrt{2}}=\frac{AB}{BC}

\frac{1}{\sqrt{2}}=\frac{x}{8\sqrt{3}}

x = 8\sqrt{6}

x = 19.59

x ≈ 19.6  

3 0
2 years ago
Please help me idk this
Softa [21]
43.010 is your answer
8 0
3 years ago
Read 2 more answers
A news report says that 28%of high school students pack their lunch. Your high school has 600 students. How many students in you
Vesnalui [34]
Roughly 168

multiply 0.28 by 600 
5 0
3 years ago
Read 2 more answers
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