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3 years ago

(3,4);m=-z in point slope formula

Mathematics

1 answer:

Oduvanchick [21]3 years ago

4 0

Given:

Point = (3,4)

Slope : m = -z

To find:

The point slope formula.

Solution:

Point slope form: If a line passes through the point $(x_1,y_1)$ and having slope m, then the point slope form of the line is

$y-y_1=m(x-x_1)$

The line passing through the point (3,4) and having slope -z.

Putting $x_1=3,y_1=4, m=-z$ , we get

$y-4=-z(x-3)$

Therefore, the required point slope form is $y-4=-z(x-3)$ .

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A cylindrical well has a radius of 8 feet and a height of 13 feet what is the volume of the well use 3.14 for pie round your ans

vitfil [10]

To find the volume of a cylinder, you use this formula:
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Plug in your numbers,
V = (3.14 * $8^{2}$ ) * 13

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Parentheses:
V = 200.96 * 13

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3 years ago

You measure 47 backpacks' weights, and find they have a mean weight of 79 ounces. Assume the population standard deviation is 13

ki77a [65]

Answer:

3.14

Step-by-step explanation:

Given that:

Mean weight (m) = 79 ounces

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The margin of error is given by:

Zcritical * (standard deviation / sqrt(sample size)

Z critical at 90% confidence interval = 1.645

Hence,

Zcritical * (standard deviation / sqrt(sample size)

1.645 * 13.1 / sqrt(47)

1.645 * (13.1 / 6.8556546)

1.645 * 1.9108313

Hence, the margin of error is :

3.1433174885

= 3.14

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3 years ago

Alan deposited $300 into a savinga account. At the end of the first year, the amount of money in the account has increased to $3

Step2247 [10]

He had put in $300 and got out $336 at the end of the year.
This means an increase of $36 over a year.

10% of $300 = $30 dollars
This shows that he definitely got more than a 10% increase.

Alan got $6 more than $30 so to find 6 from 30, you divide by 5

so ( 10% = $30 ) divided by 5 = ( 2% = $6 )

Adding the amount of money and percentages gives you 12% = $36

So the amount of mpercentage increase is 12%

Overall the amount of money in his bank now compared to when he deposited it, he has 112% in the bank.

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3 years ago

Scale Drawings question

Nimfa-mama [501]

Answer:

138 is the answer

Step-by-step explanation:

In order to find the perimeter, we use this formula

P=2(l+w)

And to find the width, we use this formula

w = P/2 - L = 18/2 - 3 = 6

So the width is 6

3 × 6 = 18

So thats why the perimeter of the top triangle is 18

We do 21 ÷ 3 = 7, 7 = scale factor

To find the perimeter of the bottom triangle, we do

the width of the top rectangle times 7

so 6 × 7 = 48

So the perimeter for the bottom triangle is

P=2(l+w)=2·(48+21)=138

6 0

2 years ago

Can someone help me plz

son4ous [18]

Answer: ITS 100% D.)12

Step-by-step explanation:

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hope this was helpful :D

brainliest plz?

3 0

3 years ago