All categories

4 years ago

Please help...........

Mathematics

1 answer:

Alla [95]4 years ago

7 0

Mel took 8 more strokes b/c

-6+6=0

0+3=3

6+3=8 or

-6+8=3

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3 years ago

How do you write 35/5 as a percentage

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Answer:

700%

Step-by-step explanation:

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WHICH OF THE FOLLOWING DESCRIBES THE FUNCTION -X^4+1?

stich3 [128]

Answer:

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4 years ago

The weekly amount of money spent on maintenance and repairs by a company was observed, over a long period of time, to be approxi

ANEK [815]

Answer:

$456.45 should be budgeted.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the z-score of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

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This means that $\mu = 440, \sigma = 10$

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This is x for which

P(X > x) = 0.05

So this is the 100 - 5 = 95th percentile, which is X when Z has a pvalue of 0.95, so X when Z = 1.645.

$Z = \frac{X - \mu}{\sigma}$

$1.645 = \frac{X - 440}{10}$

$X - 440 = 10*1.645$

$X = 456.45$

$456.45 should be budgeted.

7 0

3 years ago