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iogann1982 [59]
2 years ago
13

Tameka bought three dozen donuts to take into work. There are 12 cake donuts, 6 glazed donuts, 8 chocolate donuts, and 10 bluebe

rry donuts. If she randomly gives donuts to 12 of her coworkers, which of the following is the best prediction of the number of coworkers that will receive a cake donut? A. 2 B. 6 C.4 D.3. help me 
Mathematics
1 answer:
____ [38]2 years ago
5 0
The correct answer is letter C.

The reason is because there are 12 cake donuts out of the 36 total.  This is a simple ratio of 1 to 3.  This means one out of every 3 people would get a cake donut.  If there are 12 people, this is 4 groups of 3, so one person from each group of 3 is 4 people.


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In triangle PQR, PS, QT,and RU are the medians , and PS and QT intersect at the point (4,5)
jekas [21]
We are given with a triangle and three medians. The intersection of the two medians is also given which is (4,5). What is asked is the intersection between another pair of medians. Since the medians of a triangle intersect at the centroid of a triangle, the intersection is also
<span>B. (4, 5)</span>
7 0
2 years ago
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the performance score of 10 adults is recorded, and the results are 83 87 90 92 93 100 104 111 115 121 find the standard deviati
luda_lava [24]

Answer:

The standard deviation of the data set is \sigma = 12.7906.

Step-by-step explanation:

The Standard Deviation is a measure of how spread out numbers are. Its symbol is σ (the greek letter sigma)

To find the standard deviation of the following data set

\begin{array}{cccccccc}83&87&90&92&93&100&104&111\\115&121&&&&&&\end{array}

we use the following formula

                                             \sigma = \sqrt{ \frac{ \sum{\left(x_i - \overline{X}\right)^2 }}{n-1} }

Step 1: Find the mean \left( \overline{X} \right).

The mean of a data set is the sum of the terms divided by the total number of terms. Using math notation we have:

                                     Mean = \frac{Sum ~ of ~ terms}{Number ~ of ~ terms}

Mean = \frac{Sum ~ of ~ terms}{Number ~ of ~ terms}=\frac{83+87+90+92+93+100+104+111+115+121}{10} \\\\Mean = \frac{996}{10} =\frac{498}{5}=99.6

Step 2: Create the below table.

Step 3: Find the sum of numbers in the last column to get.

\sum{\left(x_i - \overline{X}\right)^2} = 1472.4

Step 4: Calculate σ using the above formula.

\sigma = \sqrt{ \frac{ \sum{\left(x_i - \overline{X}\right)^2 }}{n-1} }       = \sqrt{ \frac{ 1472.4 }{ 10 - 1} } \approx 12.7906

3 0
2 years ago
What's the square root of 41 to the nearest hundredth?
jenyasd209 [6]
The square root of 41 or  \sqrt{41} is 6.40 rounded to the nearest hundredth.

6.40

6 0
2 years ago
The R.R. Bowker Company of New York collects data on annual subscription rates to periodicals. Results are published in Library
Igoryamba

Answer:

90%

Step-by-step explanation:

Let's call the percentage of students that read Time magazine by P(T), and the percentage of students that read U.S News and World Report by P(U). So, we have that:

P(T) = 0.63

P(U) = 0.51

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To find the percentage of students that read either the Time magazine or the U.S.News and World Report magazine (that is, P(T or U)), we can use this formula:

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P(T or U) = 0.63 + 0.51 - 0.24 = 0.90

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6 0
2 years ago
Hasan plans to choose a book from a section of the store where everything is 25% off. he writes the expression d−0.25d to find t
Korvikt [17]
Given:
discount of 25%

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Bella's equation: 0.75d

d represents the original price.
0.25d represents the discount.
0.75d represents the discounted price.

Example: 1,000 is the price. d = 1,000
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Hassan: d - 0.25d =  1000 - 250 = 750
Bella: 0.75d = 0.75(1000) = 750

6 0
2 years ago
Read 2 more answers
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