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2 years ago

Solve the following system of equations Y= -2x – 3 4y + x =16

Mathematics

1 answer:

Aleksandr-060686 [28]2 years ago

6 0

Answer:

(-4,5)

*View attached graph*

Step-by-step explanation:

y = -2x - 3

4y + x = 16

4(-2x - 3) + x = 16

-8x - 12 + x = 16

-7x - 12 = 16

+12 + 12

-7x = 28

/-7 /-7

x = -4

4y + x = 16

4y + (-4) = 16

4y - 4 = 16

+ 4 + 4

4y = 20

/4 /4

y = 5

(x,y) -> (-4,5)

Hope this helps!

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What are the coordinates of the vertex of the graph of y = x2 + 8x + 1?

Rus_ich [418]

Answer:

y= x2 + 8x - 1 is y=(x+4) 2-17

Step-by-step explanation:

First find - b/2 = - 4, so -4 will be added to x inside the parenthesis.

Next , find c - b2 to find the value you added at the end

y= (x- b2) 2 + c - b2

y= (x+4) 2 - 17

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3 years ago

Brainliest for the correct answer :)

KiRa [710]

$\huge \mathrm{ \underline{ \underline{Àñswér}}}$

The Area of Shaded region is equal to the difference in Area of rectangle and Area of triangle .

let's solve for area of rectangle :

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And since, Area of Shaded region = 44 cm²

By equating the area, we get

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3 years ago

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Vikki [24]

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3 years ago

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P=−4b 2 +6b−9 Q=7b 2 −2b−5 P−Q= Your answer should be a polynomial in standard form.

shepuryov [24]

Answer:

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Step-by-step explanation:

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2 years ago

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nataly862011 [7]

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10x + 36 = 2 • (5x + 18)

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2 years ago