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Inessa05 [86]
3 years ago
7

Can someone help? Correct answer gets brainliest!

Mathematics
1 answer:
oksano4ka [1.4K]3 years ago
6 0

Answer:x= 8

Step-by-step explanation:11-3=8. 8+3=11

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The average weekly income of teachers in one school district is $750 with a standard deviation of $85. Find the percentage of te
dalvyx [7]
Point estimate (average) = $750
Standard deviation = $85
P(X>$825) = ?

Z = (X-mean)/Standard deviation = (825-750)/85 ≈ 0.88

From Z-table, P(X=825) = 0.8106

Therefore,
P(X>$825) = 1 - P(X=$825) = 1-0.8106 = 0.1894 = 18.94%

Percentage of teachers earning more than $825 is 18.94%.
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4 years ago
What is 7.8 * 7.8 * 7.8 * 7.8 * 7.8 as a power
Kaylis [27]

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7.8^5

Step-by-step explanation:

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3 years ago
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3 years ago
Marking brainliest for best answer and extra points
kumpel [21]

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3 years ago
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Sara's teacher has 6 7/8 cups of water. She used 4/8 a cup of water to water the plant on her desk and 3 2/8 cups for some stude
PIT_PIT [208]

Answer:

Amount of water left = 25 / 8 cups

Step-by-step explanation:

Given:

Amount of water teacher Sara have = 6\frac{7}{8} cups = 55 / 8 cups

Amount of water teacher used = 4/8 cups

Amount of water used by student = 3\frac{2}{8} cups = 26 / 8 cups

Find:

Amount of water left

Computation:

Amount of water left = Amount of water teacher Sara have - [Amount of water teacher used + Amount of water used by student]

Amount of water left = [55/8] - [4/8 + 26/8]

Amount of water left = [55/8] - [30/8]

Amount of water left = [55-30] / 8

Amount of water left = 25 / 8 cups

5 0
3 years ago
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