:( help me, please ):

Mathematics

1 answer:

vladimir2022 [97]3 years ago

6 0

Answer:

6,18

2,6

4,12

Step-by-step explanation:

all these numbers are equivalent if you divide the first number by the second ones.

You might be interested in

What is 3(2x-4)=5x+2

otez555 [7]

First we distribute 3 into 2x and -4.

3 x 2x = 6x
3 x -4 = -12

That will make the left side of the equation:

6x - 12 = 5x + 2

Now we subtract 5x on both sides of the equation.

x - 12 = 2

Finally we add 12 on both sides of the equation.

x = 14 is the answer

6 0

3 years ago

8x +2 factored using the GCF

wolverine [178]

The answer is 2 because I solved it and checked it.

7 0

3 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

bazaltina [42]

Answer:

$425.6 should be budgeted for weekly repairs and maintenance.

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.

Mean $400 and standard deviation $20.

This means that $\mu = 400, \sigma = 20$

How much should be budgeted for weekly repairs and maintenance to provide that the probability the budgeted amount will be exceeded in a given week is only 0.1?

This is the 100 - 10 = 90th percentile, which is X when Z has a p-value of 0.9, so X when Z = 1.28.

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

$1.28 = \frac{X - 400}{20}$