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Margaret [11]
2 years ago
5

3. *

Mathematics
1 answer:
vlabodo [156]2 years ago
3 0

Answer:

it is B 2 real solutions

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If BC = 5, DE = 9, and AB = 4, what is the length of AD?<br><br><br> 7<br> 8<br> 7.2<br> 7.5
steposvetlana [31]

There are two triangles here: ABC and ADF. These triangles are similar, and thus proportional. So, we can set up a proportion between the left side of each triangle and the base of each triangle.

AB / AD = BC / DE

4 / (4 + BD) = 5 / 9

---AD is made up of AB and DB. We know AB, but not BD, so we need to find its value to find the length of AD.

5(4 + BD) = 9 x 4

20 + 5BD = 36

5BD = 16

BD = 3.2

AD = AB + BD

AD = 4 + 3.2

AD = 7.2

Hope this helps!

8 0
3 years ago
Which is the upper left quadrant on the coordinate plane?
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Answer:

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fiona is going to jog once around the block she lives on. The block is retangular, and it is 180 yards long and 200 feet wide. H
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180yd x 2 = 360yd

change to feet: 360 x 3 = 1080 feet

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1080 + 400 = 1480ft

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The following data shows rainfall in a forest, in inches, on consecutive days of a month:
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is there suppossed to be a chart

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In 1945​, an organization asked 1467 randomly sampled American​ citizens, "Do you think we can develop a way to protect ourselve
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Yes.

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