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astraxan [27]
3 years ago
14

How can you see that a reflection could work without knowing where the line of reflection is? If you get the answer right I'll p

aypal, venmo or cash app you $50. So drop your paypal, venmo or cash app along with your answer.

Mathematics
1 answer:
ch4aika [34]3 years ago
8 0

Note how going from R to S to T to U has us going counterclockwise. In contrast, going from R' to S' to T' to U' has us going the opposite direction going clockwise. This change in orientation strongly implies that a reflection has been done. Reflections always flip orientation.

-----------------------------------------

Here's how we can find the line of reflection.

Draw a line segment from point R to point R'. Mark the midpoint of the segment as point A

Repeat this process to form a segment from S to S'. Mark the midpoint as point B.

The line of reflection will pass through points A and B. This is because the line of reflection is equally distant between the original point (such as point R) and its reflected point (such as R'). This must mean that the line of reflection goes through the midpoint of segment UU' and also segment TT'.

Refer to the diagram below.

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alexgriva [62]
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5 0
3 years ago
Margaret is planning a rectangular garden. Its length is 4 feet less than twice its width. Its area is 170ft^2. what are the dim
bogdanovich [222]
If you would like to know the dimensions of the garden, you can calculate this using the following steps:

length ... (2 * x - 4) feet
width ... x feet
area ... 170 ft^2

area = length * width
170 = (2 * x - 4) * x
170 = 2 * x * x - 4 * x
170 = 2 * x^2 - 4 * x
0 = 2 * x^2 - 4 * x - 170     /2
0 = x^2 - 2 * x - 85
1. x = 1 - sqrt(86) = -8.27
2. x = 1 + sqrt(86) = 10.27

length: 2 * x - 4 = 2 * 10.27 - 4 = 16.54 feet
width: x = 10.27 feet

The dimensions of the garden are 16.54 feet and 10.27 feet.
7 0
3 years ago
The value of the surface area of the cylinder is equal to the value of the volume of the cylinder. Find the value of x.
Genrish500 [490]
Radius, r = 7.2
Height, h = x

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2*pi*r*x

Volume of the cylinder
pi*r^2*x

2*pi*r*h = pi*r^2*h
2 = r


6 0
3 years ago
Which expression is equivalent to 27 + 15
nadya68 [22]
The answer to your question is 3 (9 + 5).
Because 3 × 9 is 27
And 3 × 5 is 15
Therefore your answer is 3 (9 + 5) :)
7 0
3 years ago
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balu736 [363]

Answer:

C

Step-by-step explanation:

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