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bixtya [17]
3 years ago
12

PLEASE HELP ASAP!!!!

Mathematics
1 answer:
OleMash [197]3 years ago
7 0

Answer:

y = -2x + 8

Step-by-step explanation:

The point slope form of an equation is written as

y = mx + c              ...............(i)

Where m is the slope and c is the constant

Now we Know that the equation is

y + 2 = -2(x-5)

and the given points are

m= -2

x = 5

and y= -2

Putting these values in equation (i) to find the value of c

y = mx + c

it becomes

-2 = -2(5) + c

-2 = -10 + c

Adding 10 on both sides

-2 + 10 = -10 + 10 + c

8 = c

or c=8

Now we have the values of m and c

where m= -2 and c = 8

Point slope form of an equation is

y = mx + c

putting the values of m and c to get equation in slope intercept form is

y = (-2)x + 8

or

y = -2x + 8


Other method:

The given point slope form is

y + 2 = -2(x-5)

We have to change it in y= mx + c      form

so solving it

y + 2 = -2x + 10

Subtracting 2 from both sides

y + 2 -2 = -2x + 10 -2

y = -2x + 8

which is same is

y=mx + c

so the required equation is

y = -2x + 8  

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the lengths of the side of a rectangular window have the ratio 1.7 to 1 the area of the window is 2,720 sqaure inches what are d
nignag [31]

Answer:

Lenght: 68\ in\\\\Width: 40\ in

Step-by-step explanation:

The formula for calculate the area of a rectangle is:

A=lw

Where "l" is the lenght and "w" is the width.

You know that the ratio  of the sides of the rectangular window is:

1.7:1

 Then, let be x the width (in inches) of the rectangular window and 1.7x the lenght (in inches) of the rectangular window.

Knowing that the area of the window is 2,720 square inches, you can know that:

(1.7x)(x)=2,720

Now you must solve for "x" in order to find the width:

(1.7x)(x)=2,720\\\\1.7x^2=\\\\x=\sqrt{\frac{2,720}{1.7} }\\\\x=40

Finally, the lenght is:

1.7x=1.7(40)=68

3 0
3 years ago
Evaluate [6 - (5 - 6(5 - 7) + 3)] + 3
kkurt [141]
Answer: 10
steps below…

8 0
2 years ago
Pls help ASAP! I will mark the brainliest (IF I GET IT RIGHT)
Gelneren [198K]

Answer:

V=288π      

288*3.14=904.32

Step-by-step explanation:

V=4/3π (6)^{3}

V=4/3π 216

V=4π72

V=288π

288*3.14=904.32

4 0
2 years ago
...............................................
slavikrds [6]
What exactly are you asking?
5 0
3 years ago
How many variables in are the following expression? 8 + b -12c + m
Alex

Answer:

3 variables.

Step-by-step explanation:

b, c, and m are all variables.

6 0
2 years ago
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