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4 years ago

What is the slope of the line passing through the points (-5,7) and (-3,5)

Mathematics

1 answer:

lbvjy [14]4 years ago

5 0

Answer:

Slope of the line passing through the points (-5,7) and (-3,5) is -1.

Step-by-step explanation:

slope of line passing through point (x1,y1) and (x2,y2) is given by

m = (x2-x1)/(y2-y1)

____________________________________________

In the problem given points are (-5,7) and (-3,5)

using the formula for finding slop ewe have

m = (-3-(-5))/(5-7)

=> m = (-3+5)/-2

=> m = 2/-2

=> m = -1

Thus, slope of the line passing through the points (-5,7) and (-3,5) is -1.

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MissTica

Answer:

$3.98(estimated)

Step-by-step explanation:

3c (cake) + 2(2c - 11) (bread) = 5.87

3c + 4c - 22 = 5.87

7c - 22 = 5.87

7c = 5.87 + 22

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c = 3.98

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2 years ago

Please hurry it’s missing

FrozenT [24]

Answer:

B. $1,400

Step-by-step explanation:

8.75 x 20 x 8 =

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Hope that helps!

4 0

3 years ago

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the equation of a circle in general form is x squared + y squared + 20x + 12 y + 15 equals 0what is the equation of the circle i

Marrrta [24]

Answer: $(x+10)^2+(y+6)^2=121$

Step-by-step explanation:

The equation of a circle in the general form is:

$ax^{2}+by^2+cx+dy+e=0$

The equaton of a circle in standard form is:

$(x-h)^2+(y-k)^2=r^2$

Where the center is at <em>(h, k)</em> and <em>r</em> is the radius

To write the equation of a circle from general form to standard form, you must complete the squaare, as you can see below:

1- Given the equation in general form:

$x^{2}+y^2+20x+12y+15=0$

2- Complete the square:

-Group the like terms and move the constant to the other side.

- Complete the square on the left side of the equation.

- Add the same value to the other side.

Then you obtain:

$(x^{2}+20x)+(y^2+12y)=-15\\(x^2+20x+(\frac{20}{2})^2)+(y^2+12y+(\frac{12}{2})^2)=-15+(\frac{20}{2})^2+(\frac{12}{2})^2\\\\(x+10)^2+(y+6)^2=-15+100+36\\(x+10)^2+(y+6)^2=121$

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3 years ago

The product of a number and -3 increased by eight is 20

Assoli18 [71]

Answer:

Step-by-step explanation:

20-8 = 12

12- -3 = 15

15 + -3 = 12 + 8 + 20

4 0

4 years ago

What number is 45%of 180?

anastassius [24]

81 is 45% of 180.

Simply multiply the percentage rate to the whole to get the part it is representing.

180 is the whole or 100%
45% is the percentage rate of the part.

180 x 45% = 81

81 is the value of the part

Assuming the part and the whole is given, to get the percentage rate, simply divide the part by the whole. and multiply its quotient by 100%.

81/180 = 0.45 x 100% = 45%

In the instance that the part and its corresponding percentage rate is given, find the whole. divide the part by its percentage rate.

81/45% or 81/0.45 = 180

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4 years ago

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