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bazaltina [42]
3 years ago
10

The coordinates of the vertices of triangle ABC are A(9.-10), B(-15, 0), and C(15, 10). A dilation centered at (0, 0) is perfome

d on triangle ABC to produce triangle ABC. The coordinates of the vertices of triangle A'B'C' are A' (13.5, -15), B(-22.5, OJ, and C(22.5, 15). Find the scale factor. will mark brainlyst ​

Mathematics
1 answer:
Alex3 years ago
8 0
Answer: 1.5 (D)
Explanation: I plotted the points on a graph and calculated the length of AC (20) and A’C’ (30)
The answer should be 30/20 = 1.5
I hope this helps!
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3 years ago
What is the measure of angle w? Type the number only. Do not type the word degrees.
Margaret [11]

Answer:

w = 34°

Step-by-step explanation:

Every quadrilateral is equal to 360 degrees. If you know 3 out of the 4 angles, then what you need to do is add up each angle and subtract the sum from 360 to find the remaining angle.

90 + 90 + 146 = 326

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4 0
3 years ago
if a school library has 86 fiction books and 74 nonfiction books, what is the percentage of nonfiction books?
hodyreva [135]

Answer:

46.25%

Step-by-step explanation:

First, add both numbers together. (86 + 74).

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There's our answer.

3 0
3 years ago
What is the value of a+b?
MissTica

Answer:

125

Step-by-step explanation:

a =  \frac{1}{2}  \times 90 \degree \\  \\ a = 45 \degree \\  \\ b =\frac{1}{2} (360\degree - 200\degree) \\  \\ b = 80\degree \\  \\ a + b = 45 + 80 \\  \\ a + b = 125 \degree

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3 years ago
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