3 years ago

I need to simplify for the question

Mathematics

2 answers:

Afina-wow [57]3 years ago

7 0

Answer:

$x^2 + 3xy + 4y^2$

Step-by-step explanation:

$(x - 2y)^2 + 7xy =$

$= (x - 2y)(x - 2y) + 7xy$

$= x^2 -2xy - 2xy + 4y^2 + 7xy$

$= x^2 + 3xy + 4y^2$

Anastaziya [24]3 years ago

6 0

Answer:

$\tt x^2+3xy+4y^2$

Step-by-step explanation:

$\tt(x-2y)^2+7xy\\\\=x^2-4xy+4y^2+7xy\\\\=x^2+3xy+4y^2$

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Pls help will mark brainliest

satela [25.4K]

Answer:

80in²

Step-by-step explanation:

Hey There!

So the first step of this problem is to find the width of the scale drawing

To do so we need to find the scale factor

To find the scale factor we divide the length of the room by the length of the scale factor

32/8=4

so the scale factor is 4

now to find the width

40/4=10

so the width of the scale drawing is 10 in

now we can find the area given the length and the width

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so we can conclude that the area of the scale drawing is 80in²

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3 years ago

What is the ratio of peppers and peas if there is 11 peas and 30 peppers?

Vanyuwa [196]

Answer:

The Ratio would be 11:30

Step-by-step explanation:

peas : 11

Peppers: 30

High Hopes ^^

Barry-

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3 years ago

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baherus [9]

Answer:

$176.12 \: is \: the \: answer.$

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3 years ago

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Mrs. Smith is shopping in a super market and she has a budget of $86 to spend on $5 cakes, $1 eggs, $18 pizzas. She wants to buy

katrin [286]

18 x 3 = 54
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3 years ago

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solve the equation by completing the square: x^2-3x-18=0. after completing the square, the equation will be ______ and the solut

bixtya [17]

Answer:

1) x²-3x+9/4 = 81/4

2) x = 6, -3

Step-by-step explanation:

x²-3x-18=0

x²-3x=18

(b/2)² = (-3/2)² = 9/4; completing the square

x²-3x+9/4 = 18+9/4

(x-3/2)(x-3/2) = 81/4

x - 3/2 = ± 9/2

x = 3/2 ± 9/2

x = 6, -3

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3 years ago