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marshall27 [118]
2 years ago
15

Triangle ABCis rotated 90° clockwise around the origin to get

Mathematics
1 answer:
Elanso [62]2 years ago
7 0

Answer:

The distance A’C’ is 4.47 units

Step-by-step explanation:

Before we go on, we need to get the appropriate transformation

Mathematically, we have a 90 degrees clockwise rotation yielding the following;

(x,y) to (-y,x)

A is (-4,1)

C is (-2,5)

By transforming, we have

A’( -1,-4)

C’ (-5,-2)

To get the magnitude of the line segment, we are going to use the distance formula between points

We have this as;

D = √(x2-x1)^2 + (y2-y1)^2

D = √(-5-(-1))^2 + (-2-(-4))^2

D = √(-4)^2 + (2)^2

D = √(16 + 4)

D = √20

D = 4.47 units

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X+y+z=1
andrezito [222]

Answer: x = 0

y = 2

z = -1

Step-by-step explanation:

The system of equations are

x+y+z=1 - - - - - - - - - - 1

-2x+4y+6z=2 - - - - - - - - - 2

-x+3y-5z=11 - - - - - - - - - 3

Step 1

We would eliminate x by adding equation 1 to equation 3. It becomes

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Step 2

We would multiply equation 1 by 2. It becomes

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We would add equation 2 and equation 5. It becomes

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Step 3

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4 0
3 years ago
Solve the equation Square root of x minus 5+ 7 = 11 for the variable. Show each step of your solution process. (10 points)
Murrr4er [49]

\sqrt{x - 5} + 7 = 11

(\sqrt{x-5}) ^{2} = (4)^{2}

|x - 5| = 16

x - 5 = +/- 16

x - 5 = 16     or     x - 5 = -16

<u>   +5</u>   <u>+5   </u>           <u>   +5 </u>    <u>+5  </u>

    x = 21       or        x = -11

Answer: x = {21, -11}

5 0
3 years ago
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Contact [7]

Answer:

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Step-by-step explanation:

because 4 x 5 = 20 and 10 x 2 = 20

8 0
3 years ago
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The measure of an angle is 104° What is the measure of its supplementary angle?
boyakko [2]

Answer:

76°

Step-by-step explanation:

by definition, supplementary angles sum up to 180°

hence,

104° + supplementary angle = 180°

supplementary angle = 180° - 104°= 76°

7 0
3 years ago
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The answer is 4 so C is correct
5 0
3 years ago
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