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Aleonysh [2.5K]
3 years ago
9

Help please!! i’m confused

Mathematics
1 answer:
Flauer [41]3 years ago
7 0

Answer:

<h2>3. B. AD = AO</h2>

Step-by-step explanation:

Hope it helps

<em>#CarryOnLearning</em><em> </em>

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The fraction that's equivalent to 6/7. The sum of the numerator and the denominator is 78. What is the fraction?
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6*6= 36
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36+42= 78. 

The fraction is 36/42.
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Step-by-step explanation:

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Answer:

<h2>x = 4, y = 12 → (4, 12)</h2>

Step-by-step explanation:

\left\{\begin{array}{ccc}10x+2y=64&\text{multiply both sides by 2}\\3x-4y=-36\end{array}\right\\\underline{+\left\{\begin{array}{ccc}20x+4y=128\\3x-4y=-36\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad23x=92\qquad\text{divide both sides by 2}\\.\qquad x=4\\\\\text{put the value of x to the first equation:}\\\\10(4)+2y=64\\40+2y=64\qquad\text{subtract 40 from both sides}\\2y=24\qquad\text{divide both sides by 2}\\y=12

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3 years ago
What single transformation maps ∆ABC onto ∆A'B'C'? A. rotation 90° clockwise about the origin B. rotation 90° counterclockwise a
Klio2033 [76]

Answer:

B. rotation 90° counterclockwise about the origin.

Step-by-step explanation:

Transformation is the process by which the size or orientation of a given figure is altered without any effect on its shape. Examples are; rotation, reflection, translation and dilation.

Rotation is the process of turning a figure about a reference point called the origin. While reflection is turning a figure about a line to produce its image.

In the given question, ∆ABC is  mapped onto ∆A'B'C' by rotating it at 90° counterclockwise about the origin.

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Answer:

B

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just multiply 8.50 times 4 and all the numbers in the problem

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