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kondor19780726 [428]

3 years ago

11

Urgent!!!! The scores of a high school entrance exam are approximately normally distributed with a given mean Mu = 82.4 and stan

dard deviation Sigma = 3.3. What percentage of the scores are between 75.8 and 89?
68%

95%

99.7%

100%

2 answers:

Effectus [21]3 years ago

5 0

Answer:95%

Step-by-step explanation:

DedPeter [7]3 years ago

5 0

Answer:

95 or B

Step-by-step explanation:

right on edge

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Dada a Matriz A= [1 -2 1 ][-3 1 4] [0 6 8] , escreva uma matriz B diferente de A, tal que detA =detB.

Mariulka [41]

Use o fato de que o determinante de qualquer matriz quadrada é o mesmo da sua transposta.

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sally can paint a room in 7 hours while it taks steve 9hours to finsh the same room. how ling will it take them to paint if they

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How much part can sally paint in an hour ?
a ÷ 7 = a/7

And what about Steve ?
a ÷ 9 = a/9

Where, a is the total area of the room.

So, let the time taken by both of them to paint the room together be 't'

So,
t(a/7 + a/9) = a
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What is answer to this question

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2 years ago

How many ways are there to put 5 balls in 3 boxes if the balls are not distinguishable but the boxes are

Darina [25.2K]

Answer: 5

Here are some ways:

1 ball, 2 balls, 2 balls
2 balls, 1 ball, 2 balls
3 balls, 1 ball, 1 ball
1 ball, 3 balls, 1 ball
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LUCKY_DIMON [66]

Answer:

Step-by-step explanation:

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Did you mean log 17*x*3? If so, this equals log 17 + log x + log 3

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