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2 years ago

Use the points (0, 4) and (-2, 3) to find the slope of the line and give the equation of this line.

Mathematics

1 answer:

Sauron [17]2 years ago

6 0

Answer:

Choice C: $m=\frac{1}{2}; y=\frac{1}{2} x+4$

Step-by-step explanation:

To find your slope do:

$\frac{y^2-y^1}{x^2-x^1}$

$\frac{3-4}{-2-0}=\frac{-1}{-2} =\frac{1}{2}$

that's how you get 1/2

4 is just the y-int.

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The perimeter of a rectangle is 40 inches. The table shows some of the possible dimensions for the length and area of the rectan

Mama L [17]

Answer:

Therefore the Dimensions are

Length =18 inches and Width = 2 inches

Length =2 inches and Width = 18 inches

Step-by-step explanation:

Let the Width of rectangle be 'W' inches.

The length of a rectangle be 'L' inches.

Area of rectangle given is 36 square inches.

Perimeter of Rectangle is 40 inches.

To Find:

Length = L = ?

Width = W = ?

Solution:

Perimeter of Rectangle is given as

$\textrm{Perimeter of Rectangle}=2\times (Length +Width)$

Substituting we get

$40=2(L+W)\\\\L+W=20\\\therefore L=20-W$

We have area of rectangle given as

$\textrm{Area of Rectangle}=Length\times Width)$

Substituting the given values we get

$36=(20-W)\times W\\W^{2}-20W+36=0$

Which is a Quadratic Equation, So by Splitting the middle term we get

$W^{2}-18W-2W+36=0\\W(W-18)-2(W-18)=0\\(W-2)(W-18)=0\\\therefore W=2\ inches\ or\ W =18\ inches$

Therefore the Length will be

$L=20-W=20-2=18\ inches\\OR\\L=20-18=2\ inches$

Therefore the Dimensions are

Length =18 inches and Width = 2 inches

Length =2 inches and Width = 18 inches

7 0

3 years ago

Please please help me!!

Ludmilka [50]

Its a reflection because the image flips along the line of symmetry.

3 0

4 years ago

Read 2 more answers

Which explanation can be used to informally derive the formula for the volume of a cylinder? a cylinder is similar to a triangul

romanna [79]

The correct is one is; A cylinder is like a stack of circles. The volume of the cylinder would be the area of the circle multiplied by the height of the cylinder. The height of the cylinder represents how many circles are in the stack. Therefore, we get the formula πr²h, where πr² represents the area of the circle and h the height of the circle.

6 0

3 years ago

Read 2 more answers

4% of 18what's 4% of <br>18

Degger [83]

Answer:

0.72%

Step-by-step explanation:

6 0

3 years ago

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The classes at the middle school want to raise money. The sixth grade runs a bake sale for 55 hours and makes $170. The seventh

Jet001 [13]

The sixth grade runs a bake sale for 55 hours and makes $170.
So in one hour, they made 170/55 = 3.09 dollars.
Rate: $3.09/h

The seventh grade sets up a dunking booth for 44 hours and makes $112.
So in one hour, they made 112/44 = 2.54 dollars.
Rate: $2.54/h

The eight grade has a car wash and makes $192 in 66 hours.
So in one hour, they made 192/66 = 2.90 dollars.
Rate $2.90/h

3.09 > 2.90 > 2.54
So R(6th) > R(8th) > R(7th)

Which means that the sixth grade has the highest rate for raising money.

Hope this helps! :)

6 0

3 years ago

Read 2 more answers

Use the points (0, 4) and (-2, 3) to find the slope of the line and give the equation of this line.​

Use the points (0, 4) and (-2, 3) to find the slope of the line and give the equation of this line.