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tia_tia [17]
3 years ago
10

Anyone donate help?

Mathematics
1 answer:
sweet [91]3 years ago
3 0

Answer:

4(2x-y) (2x+y)

Step-by-step explanation:

The area of the picture is 2y*2y = 4y^2

The area of the picture and the frame is 4x*4x = 16x^2

The area of the frame is  The area of the picture and the frame minus The area of the picture

The area of the frame  = 16x^2- 4y^2

Factor out a 4

                                       4(4x^2 -y^2)

This is the difference of squares

a^2 – b^2 = (a + b)(a – b)

a^2 = 4x^2  so a=2x

b^2 = y^2  so b=y

     4(4x^2 -y^2) = 4(2x-y) (2x+y)

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An orange has 30 calories more than a peach
Luden [163]

Answer:

O = p + 30

13p = 7o

O is (x+30)

O = 1+30 ....31

6 0
3 years ago
A+b=77,a-b=13 care sun nr
STALIN [3.7K]
It's a simultaneous equation:
Steps:
1.Number the equations..

a+b=77 -1
a-b=13 -2

2. Choose what variable you want to use. In this case I would use the "b". Since the signs in front of the "b's" are different, add the two equations together

a + b = 77
+ + +
a (-b) = 13

Which gives;
2a = 90

Then solve to find a:
2a=90
a= 90/2
a=45

3.Then plug the "a" value into any of the original equations to find the "b" value. I would use equation 1 since the all the variables are positive.

a + b = 77
(45) + b = 77
b=77-45
b=32

4.Solution

a=45
b=32
3 0
3 years ago
write an equation in point slope form of the line that passes through the point (0,1) and has a slope if -3/2
DochEvi [55]

Step-by-step explanation:

<u>y</u> - <u>1</u> = <u>-</u><u>3</u>

x - 0 2

2y - 2 = -3x

2y = -3x + 2

7 0
3 years ago
a carpet cost $15 per square foot. ( When calculating the price, any fraction of a square foot is counting as a whole square foo
gregori [183]
300 dollars, 15x20 because they count any fraction as a foot, so is like you are going to buy 20 foot of carpet.
5 0
3 years ago
Help me please im strugglin
IRINA_888 [86]

Answer:

propotianal

Step-by-step explanation:

Rise is how many you go up on the y axis x axis is how many you go to the left or right on the x axis if the number is negative you go the the right. the points match up with -4/1 - 1 so it's is proportional please give me brainliest

3 0
3 years ago
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