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sanociahnoel
12.05.2021 •
Mathematics
The point V (3,-5) is rotated 270 degrees clockwise around the origin. Find the coordinates of the resulting point V.
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Ответ:
Step-by-step explanation:
(5,3) is the answer
Ответ:
1 inch : 14.08 feet
Step-by-step explanation:
First we need to find to find the length and the width of the billboard.
The area of a rectangle is given by A= length x width
Let's call w the width of the billboard ⇒The length of the billboard will be 2.5w
Area = w (2.5w)
2,250 = 2.5w²
2250/2.5 = w²
900 = w²
30 = w
Now, to find the scale in the drawing we are going to use a ratio.
We have the width of the billboard, the area of the billboard and the area of the scale drawing. We are going to write these values as a ratio to find the width of the scale drawing.Therefore, the width of the scale drawing is 2.13.
To find the scale used we can use a rule of three:
2.13 inches ------- 30 feet
1 inches -------------- x feet
x = 30/2.13 = 14.08 feet
Therefore, the scale used is 1 inch: 14.08 feet