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3 years ago

Put this equation into slope intercept form 6x+12y=9

Mathematics

1 answer:

Aleksandr-060686 [28]3 years ago

8 0

y = - $\frac{1}{2}$ x + $\frac{3}{4}$

The equation of a line in slope-intercept form is

y = mx + c ( m is the slope and c the y-intercept )

rearrange 6x + 12y = 9 into this form

subtract 6x from both sides

12y = - 6x + 9 ( divide all terms by 12 )

y = - $\frac{6}{12}$ x + $\frac{9}{12}$ ( which simplifies to )

y = - $\frac{1}{2}$ x + $\frac{3}{4}$

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Coach Evans recorded the height, in inches of each player on his team. The results are shown.

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Answer:

Step-by-step explanation:

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3 years ago

The mean number of hours per day spent on the phone, according to a national survey, is four hours, with a standard deviation of

Reika [66]

Answer:

The new mean is 5.

The new standard deviation is also 2.

Step-by-step explanation:

Let the sample space of hours be as follows, S = {x₁, x₂, x₃...xₙ}

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The standard deviation of this sample is 2. That is, $s=\frac{1}{n-1}\sum (x_{i}-\bar x)^{2}=2$ .

Now it is stated that each of the sample values was increased by 1 hour.

The new sample is: S = {x₁ + 1, x₂ + 1, x₃ + 1...xₙ + 1}

Compute the mean of this sample as follows:

$\bar x_{N}=\frac{x_{1}+1+x_{2}+1+x_{3}+1+...+x_{n}+1}{n}\\=\frac{(x_{1}+x_{2}+x_{3}+...+x_{n})}{n}+\frac{(1+1+1+...n\ times)}{n}\\=\bar x+1\\=4+1\\=5$

The new mean is 5.

Compute the standard deviation of this sample as follows:

$s_{N}=\frac{1}{n-1}\sum (x_{i}-\bar x)^{2}\\=\frac{1}{n-1}\sum ((x_{i}+1)-(\bar x+1))^{2}\\=\frac{1}{n-1}\sum (x_{i}+1-\bar x-1)^{2}\\=\frac{1}{n-1}\sum (x_{i}-\bar x)^{2}\\=s$

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3 years ago

a computer in Texas cost $420 and the tax is $60 what is the tax rate ? can anyone explain how I get the answer

sertanlavr [38]

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2 years ago

Which triangle is a 30°-60°-90° triangle? Mark this and return

frutty [35]

The right triangle has an angle of 30°-60°-90°

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3 years ago

Read 2 more answers

I have a math question.Two fielda ats state park are 1000 meters from each other.On a map,the two fields are 8 centimeters apart

umka2103 [35]

Answer:

The scale used is 1 : 12500. And the scale is in centimetres

Step-by-step explanation:

Given:

state park are 1000 meters from each other.

On a map,the two fields are 8 centimetres apart

To Find:

The scale used by the map = ?

Is it the metric scale?

Solution:

Actual distance between the parks is 1000 meters. But in map the distance is 8 centimetres

so the scale for map to actual distance is

8 cm : 1000 m

Now,

1 m = 100 m

1000 m = 100000 cm

Thus

8 cm : 100000 cm

On Reducing we get,

1 : 12500

4 0

2 years ago