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nikitadnepr [17]
3 years ago
6

Carmela randomly selected 85 stamps from a stamp collection. Eleven of these were commemorative stamps.

Mathematics
1 answer:
uysha [10]3 years ago
4 0

Answer:

(0.095, 0.165)

Step-by-step explanation:

Confidence interval :

Phat ± margin of error

Margin of Error = 0.035

Phat = x / n

Phat = 11 / 85 = 0.1294117

Hence,

Phat ± 0.035

Lower boundary = 0.1294117 - 0.035 = 0.0944

Upper boundary = 0.1294117 + 0.035 = 0.1644

(0.0944, 0.1644)

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50% of the 6th grade students at Snowflake Middle school spent part of their winter break visiting their grandparents. If 243 st
VMariaS [17]
Numerous information’s of immense importance is already provided in the question. Based on them the answer to the question can be easily deduced.
Total number of students that visited their grandparents = 243
Percentage of 6th grade students that visited their grandparents = 50%
Let us assume the number of students = x
50x/100 = 243
x/2 = 243
x = 243 * 2
  = 486
<span>So the total number of students in Grade 6 of Snowflake school was 486.</span>


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3 years ago
The measures angles of hexagon are 4x, 5x, 6x, 7x, 8x and 9x. calculate the size of the largest angle.​
ankoles [38]

Answer:

rounded to the nearest whole number = 166

Step-by-step explanation:

Add all of the angles together, to get 39x. In a hexagon, all the angles add up to 720. Divide 720 by 39 to get x, then multiply x by 9, as that is the largest angle to get an answer rounded to the nearest whole number of 166.

If you found this answer helpful, I would appreciate it if you gave me brainliest :D

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3 years ago
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kobusy [5.1K]

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1st option

y=-3/8x+3

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