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3 years ago

Please HeLP me por favor

Mathematics

2 answers:

miv72 [106K]3 years ago

6 0

Answer:

A: x<3 (x is smaller than three)

AveGali [126]3 years ago

3 0

Answer:

the answer is A: x is less than 3 because the open dot means that 3 is not included in the solution.

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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

Can you help ASAP!!!! WILL MARK U BRAINLIEST!

Leto [7]

Answer: i will give u the points

Step-by-step explanation- -7, 11 and 11, 2

6 0

3 years ago

Please need this answer fast it is the last piece to my pie chart for math!!!! A catering service offers 3 appetizers, 5 main co

Brut [27]

To find in how many ways this can be done, we can use the method of combination.

As the customer have to choose 2 out of 3 appetizers, the combination would be 3C2.

For 4 out of 5 main courses, the combination wouls be 5C4.

For 6 out of 8 desserts, the combination would be 8C6.

We can then combine them into a single equation to find the answer:

3C2 x 5C4 x 8C6
=420

Therefore, the answer is 420 ways.

Hope it helps!

7 0

3 years ago

Number of the day 3.59

sleet_krkn [62]

Please be a little specific.

7 0

3 years ago

Giventheequation3x+y=6,writeasecondequationthat,togetherwiththefirst,will create a system of equations thata.has one solutio

Svetradugi [14.3K]

(4,7.8) is your answer please give brainliest!

6 0

3 years ago

Please HeLP me por favor​

Please HeLP me por favor