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11Alexandr11 [23.1K]
3 years ago
5

What will be the new position of the given point (-2, -3) after reflection across the x-axis?

Mathematics
1 answer:
Angelina_Jolie [31]3 years ago
5 0

Answer:

(2,-3)

Step-by-step explanation:

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Find the missing side lengths. Leave your answers as radicals in simplest form.
Leto [7]

9514 1404 393

Answer:

  • x = 18
  • y = 9

Step-by-step explanation:

The ratios of side lengths in a 30°-60°-90° triangle are ...

  1 : √3 : 2

In the same order, the given side lengths are ...

  y : 9√3 : x

Comparing these two sets of ratios, we see that we can make the first equal to the second by multiplying by 9:

  9(1) : 9√3 : 9(2) = y : 9√3 : x

Then y = 9·1 = 9, and x = 9·2 = 18.

The missing side lengths are x = 18, y = 9.

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3 years ago
How do you do PEMDAS
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3 years ago
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What is the distance between (8,-3) and (4,-7) ?​
galina1969 [7]

Answer:

The answer is

<h3>4 \sqrt{2}   \: \:  \: or \:  \:  5.656 \:  \:  \: units</h3>

Step-by-step explanation:

The distance between two points can be found by using the formula

<h3>d =  \sqrt{ ({x1 - x2})^{2} +  ({y1 - y2})^{2}  }  \\</h3>

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

(8,-3) and (4,-7)

The distance between them is

<h3>d =  \sqrt{ ({8 - 4})^{2}  +  ({ - 3 + 7})^{2} }  \\  =  \sqrt{ ({4})^{2} + ( { - 4})^{2}  }  \\  =  \sqrt{16 + 16}  \\  =  \sqrt{32}</h3>

We have the final answer as

<h3>4 \sqrt{2}   \: \:  \: or \:  \:  5.656 \:  \:  \: units</h3>

Hope this helps you

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Answer:

Step-by-step explanation:

Draw a picture. You have a right triangle with hypotenuse = 5 and one leg = 4.

length of remaining leg = √(5²-4²) = 3 ft

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3 years ago
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