2x+y=1 is in standard form so we will convert it to slope int form by subtracting 2x

y=-2x+1

the line we are finding the equation for is PARALLEL to this line here so the slope is the same

for the line’s equation we will put it in point slope form. y-y1=m(x-x1)

y-2=-2(x+2) is the answer!

5 0

3 years ago

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Suppose that prices of a certain model of new homes are normally distributed with a mean of $150,000. use the 68-95-99.7 rule to

Novosadov [1.4K]

Answer:

We want to find the percentage of values between 147700 and 152300

$P(147700$

And one way to solve this is use a formula called z score in order to find the number of deviations from the mean for the limits given:

$z= \frac{x-\mu}{\sigma}$

And replacing we got:

$z=\frac{147700-150000}{2300}=-1$

$z=\frac{152300-150000}{2300}=1$

So then we are within 1 deviation from the mean so then we can conclude that the percentage of values between $147,700 and $152,300 is 68%

Step-by-step explanation:

We define the random variable representing the prices of a certain model as X and the distirbution for this random variable is given by:

$X \sim N(\mu = 150000, \sigma =2300$

The empirical rule states that within one deviation from the mean we have 68% of the data, within 2 deviations from the mean we have 95% and within 3 deviations 99.7 % of the data.

We want to find the percentage of values between 147700 and 152300

$P(147700$

And one way to solve this is use a formula called z score in order to find the number of deviations from the mean for the limits given:

$z= \frac{x-\mu}{\sigma}$

And replacing we got:

$z=\frac{147700-150000}{2300}=-1$

$z=\frac{152300-150000}{2300}=1$

So then we are within 1 deviation from the mean so then we can conclude that the percentage of values between $147,700 and $152,300 is 68%

7 0

3 years ago

HELP!!

yan [13]

Answer: (15,180) y=0x+180 y=10x+30

Step-by-step explanation:

5 0

3 years ago

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“ The best time to meet the threat is in the beginning it is easier to put out a fire in the beginning when it is small then aft

pashok25 [27]

Answer:

Step-by-step explanation:

3 0

3 years ago

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