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garri49 [273]
3 years ago
8

Solve each of the quadratic equations.

Mathematics
1 answer:
My name is Ann [436]3 years ago
4 0

Answer:

0=4+27

Step-by-step explanation:

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Your paint 1/3 of a wall in 1/4 hour. at this rate, how long will it take to paint one wall
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1/4 hour is the same as 15 minutes. If it takes 15 minutes to paint 1/3, then it would take 45 minutes to paint the whole wall.

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3 years ago
**Solve by Elimination<br> 3 + 2x - y = 0<br> -3-7y = 10x<br> 7) x =<br> 8) y =
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Answer:

Explanation:

3 + 2x - y = 0
Or 2x - y = -3 (1)

-3-7y = 10x
Or -10x - 7y = 3 (2)

2x - y = -3 (1)
-10x - 7y = 3 (2)
———————

Multiply 5 to (1)

5(2x - y = -3)
-10x - 7y = 3
———————
10x - 5y = -15
-10x - 7y = 3
———————
-12y = -12
y = -12/-12
y = 1

Plug y value in (1)

2x - 1 = -3
2x = -3 + 1
2x = -2
x = -2/2 = -1

Therefore, x = -1 and y = 1
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2 years ago
Paulo is creating a confidence interval based on sample data for the percentage of Americans that own a dog. His work is shown b
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Answer:

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Step-by-step explanation:

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