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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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Someone help please !!
alekssr [168]

A = 1/2 bh

multiply each side by 2

2A = bh

divide each side by b

2A/b =h

The height of a triangle is equal to twice the area A divided by the base ,b.

8 0
3 years ago
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Can someone please help me with the question in the attachment? I will mark you as brainliest!​
san4es73 [151]

Answer:

a=327 m=416

Step-by-step explanation:

subtract the numbers and add to make sure ur answer is correct

8 0
2 years ago
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What is the surface area?<br><br> 2 mm<br> 2 mm<br> 2 mm<br><br> square millimeters
Alona [7]

Answer:

24 mm^2

Step-by-step explanation:

length x width x 6 sides in a cube

(2)(2)(6)=24

4 0
3 years ago
Jan pick 3/4 of a gallon of strawberries in a half an hour. If she keeps picking strawberries at the same rate, how many gallons
krek1111 [17]
2 divided by 1/2
2 x 2/1 = 4
3/4 x 4/1 = 12/3
12/3 = 4
4 gallons, Hope this helps!
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3 years ago
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15 points, solve the variables! Will give Brainliest!
Anon25 [30]
6: x = 8, y = 8 \sqrt{3}

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