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Naddika [18.5K]
3 years ago
13

Which equation has a graph that is a parabola with a vertex at (5, 3)?

Mathematics
1 answer:
yanalaym [24]3 years ago
6 0

Answer:

Its A because when you do (x-5)=0 you add 5 to get x=5 and thats your x value and the 3 for your k is your y value

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Which ordered pair is a solution of the equation? -x-4y=-10
Makovka662 [10]

Answer:

(2, 2 )

Step-by-step explanation:

To find a solution, choose any value for x, substitute into the equation and solve for y.

Choose x = 2, then

- 2 - 4y = - 10 ( add 2 to both sides )

- 4y = - 8 ( divide both sides by - 4 )

y = 2

Thus (2, 2 ) is a solution to the equation

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3 years ago
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Gekata [30.6K]

Solve the following system using elimination:

{5 y - 2 x = -42 | (equation 1)

7 x + 2 y = 30 | (equation 2)

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{7 x + 2 y = 30 | (equation 1)

-(2 x) + 5 y = -42 | (equation 2)

Add 2/7 × (equation 1) to equation 2:

{7 x + 2 y = 30 | (equation 1)

0 x+(39 y)/7 = (-234)/7 | (equation 2)

Multiply equation 2 by 7/39:

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0 x+y = -6 | (equation 2)

Subtract 2 × (equation 2) from equation 1:

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0 x+y = -6 | (equation 2)

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{x+0 y = 6 | (equation 1)

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Collect results:

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Hᴇʏ! Hope that I can help!
To do this, we need to divide the 70 people by the 2 people per minute.
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So stupid

Step-by-step explanation:

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