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rjkz [21]
3 years ago
10

Ghj,aedhf;oeskz.jfesl;zfjeghkljrdsoxdhrgdklwrsd

Mathematics
1 answer:
DochEvi [55]3 years ago
6 0

Answer:

30/(5+7)

Step-by-step explanation:

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A submarine dives 750 feet every 5 minutes and 4,500 feet every 30 minutes. Find the constant rate at which the submarine dives.
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150 feet per minute

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A police department reports that the probabilities that 0, 1, 2, and 3 burglaries will be reported in a given day are 0.49, 0.39
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3 years ago
Write 342 to 1 significant figure​
Rufina [12.5K]

Answer:

300

Step-by-step explanation:

A significant figure is the most important (largest) number you can round it to.

As it wants 1 significant figure, you count 1 to the left and round the 4 down.

Hope this helps :)

5 0
3 years ago
Spent Withdrew, Down,Decrease all have negative values
musickatia [10]

True, all of them represent a negative number, for example:

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60-10=50

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6 0
1 year ago
The scores for a certain test of intelligence are normally distributed with mean 85 and standard deviation 11. Find the 90th per
jonny [76]

Answer:

99.1 is the 90th percentile of these scores.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 85

Standard Deviation, σ = 11

We are given that the distribution of score is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

We have to find the value of x such that the probability is 0.90

P( X < x) = P( z < \displaystyle\frac{x - 85}{11})=0.90  

Calculation the value from standard normal z table, we have,  

P(z \leq 1.282) = 0.90

Putting values, we get,

\displaystyle\frac{x - 85}{11} = 1.282\\\\x = 99.1

Thus, 99.1 is the 90th percentile of these scores.

5 0
3 years ago
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