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Helga [31]
4 years ago
9

Find the distance between the points (5,-3) and (0,2).

Mathematics
2 answers:
alina1380 [7]4 years ago
8 0

Answer:

A

Step-by-step explanation:

Calculate the distance (d) using the distance formula

d = √ (x₂ - x₁ )² + (y₂ - y₁ )²

with (x₁, y₁ ) = (5, - 3) and (x₂, y₂ ) = (0, 2)

d = \sqrt{(0-5)^2+(2+3)^2}

  = \sqrt{(-5)^2+5^2}

  = \sqrt{25+25}

  = \sqrt{50} = \sqrt{25(2)} = 5\sqrt{2}

wolverine [178]4 years ago
3 0

Answer:

option a

Step-by-step explanation:

we have the equation of distance between two points :

d=\sqrt{(x2-x1)^2+(y2-y1)^2}

first point (5,-3)

second point (0,2)

so we have

d=\sqrt{(0-5)^2+(2-(-3))^2}

d=\sqrt{25+25}

d=\sqrt{50}

50=(5^2)*2

so we have d=\sqrt{50} = \sqrt{5^2*2

d=5\sqrt{2}

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Helen and Rebecca baked some muffins in the ratio 2:5. After Helen baked another 12 muffins, the ratio become 1:2. How many muff
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<h3>Answer:  60 muffins</h3>

=========================================================

Explanation:

x = some positive whole number

2x = amount Helen baked initially

5x = amount Rebecca baked initially

Notice that the ratio 2x:5x reduces to 2:5 after dividing both parts by x.

So (2x)/(5x) = 2/5

Helen then bakes another 12 muffins, bumping the 2x up to 2x+12. The ratio is now 1:2, which means,

(amount Helen bakes)/(amount Rebecca bakes) = 1/2

(2x+12)/(5x) = 1/2

2(2x+12) = 5x*1 .... cross multiply

4x+24 = 5x

24 = 5x-4x

24 = x

x = 24

From here, we then can say,

  • Helen = 2x+12 = 2*24+12 = 48+12 = 60
  • Rebecca = 5x = 5*24 = 120

Helen baked 60 muffins and Rebecca baked 120 muffins. We see that 60:120 reduces to 1:2 after dividing both parts by the GCF 60.

Furthermore, note how

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  • 5x = 5*24 = 120
  • 48:120 reduces to 2:5 after dividing both parts by 24

This helps confirm we have the correct answer.

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