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Leya [2.2K]
2 years ago
7

Triangle QRS is dilated according to the rule DO,2 (x,y).

Mathematics
2 answers:
pogonyaev2 years ago
8 0
I found the correct image that accompanies this problem and edited it with my answers.. Pls. see attachment. 

Based on the attachment, the correct statements are:

<span>1) DO,2 (x,y) = (2x, 2y)
2) Side Q'S' lies on a line with a slope of -1.
Q'(-6,6) S'(-2,2) 
m = y1 - y2 / x1 - x2
m = 6 - 2 / -6 - (-2)
m = 4 / -4
m = -1
</span><span>5) The distance from Q' to the origin is twice the distance from Q to the origin.

</span>

Pavlova-9 [17]2 years ago
5 0

Triangle QRS is dilated according to the rule DO,2 (x,y).

What is true about the image △Q'R'S'? Check all that apply.

DO,2 (x,y) = (2x, 2y)

Side Q'S' lies on a line with a slope of -1.

QR is longer than Q'R'.

The vertices of the image are closer to the origin than those of the pre-image.

The distance from Q' to the origin is twice the distance from Q to the origin.

i am assuming the ones in bold letters are right.

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Can anyone explain how to find surface area? BRAINLIEST FOR BEST EXPLAINTION!
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In words, the surface area of a rectangular prism is the area of the six rectangles that cover it. But we don't have to figure out all six because we know that the top and bottom are the same, the front and back are the same, and the left and right sides are the same.

The area of the top and bottom (side lengths a and c) = a*c. Since there are two of them, you get 2ac. The front and back have side lengths of b and c. The area of one of them is b*c, and there are two of them, so the surface area of those two is 2bc. The left and right side have side lengths of a and b, so the surface area of one of them is a*b. Again, there are two of them, so their combined surface area is 2ab.


Surface Area of Any Prism

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Surface Area = Lateral area + Area of two ends

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Add those two parts together and you have the formula for the surface area of a cylinder.

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