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frutty [35]
3 years ago
12

Nhà trường muốn đánh giá tỉ lệ chăm học của sinh viên (trong một tuần). Khảo sát 236 sinh viên thì thấy có 32 sinh viên chăm học

. Hãy ước lượng khoảng đối xứng cho tỉ lệ sinh viên chăm học của trường với độ tin cậy 95%
Mathematics
1 answer:
drek231 [11]3 years ago
4 0

Answer:

can't understand the language

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لیست داده و
choli [55]

Given parameters:

Cost price of the article = Nu.28.30

Selling price of the article  = Nu.29.30

Unknown:

Gain percentage = ?

The gain percentage is the same as the percentage profit on a trade.

The formula is given as:

       Gain percentage  = \frac{Profit}{Cost price}  x 100

         Profit = Selling price  - Cost price

                   = Nu.29.30 - Nu.28.30  

                   = Nu. 1

Now input the parameters and solve;

            Gain percentage  = \frac{1}{28.3} x 100

                                          = 3.5%

The gain percent is  3.5%

3 0
3 years ago
Can a translation and a reflection map QRS to TUV? Explain why or why not. No, the triangles are not congruent. Yes, a translati
N76 [4]

Answer:

The answer is B

Step-by-step explanation:

just took the answer on e2020

5 0
3 years ago
Read 2 more answers
I need help I am timed please <br><br> 1/4c+5/3c-4=2-1/12 What dose c equalu
Anon25 [30]

Answer:

c=71/23 or 3 2/23 or 3.08695652...

6 0
3 years ago
Read 2 more answers
Solve the inequality -2z-3&lt;5. what is the value of z?
agasfer [191]

Hey there!

The answer to your question is z > -4

We can solve this like it is an equation, with one exception. When you divide or multiply by a negative number, in an inequality, you have to flip the inequality sign.

-2z - 3 < 5           add 3 to both sides

     -2z < 8          divide both sides by -2, and flip the inequality sign

         z > -4      

Good luck! Hope it helps, and have a great day!

8 0
2 years ago
Read 2 more answers
X·|2x+5|+2x·|x-3|=35
VARVARA [1.3K]
You have the answer into the images.

8 0
3 years ago
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