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3 years ago

Find the missing length. Round to the nearest tenth. HELP PLEASE!!

1 answer:

LiRa [457]3 years ago

7 0

7.6

Use the Pythagorean theorem

3^2 + 7^2 = c^2

9 + 49 = 58

square root of 58 =

7.615

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Kamila [148]

2.1 + (–3.4 + 5) = [ + (–3.4)] + 5 = false

2.1 + (–3.4 + 5) = 3.7

[ + (–3.4)] + 5 = 1.4

Thus your answer is 2.1

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Angelina_Jolie [31]

Answer: OPTION A.

Step-by-step explanation:

Find the length scale factor by dividing the known length of the larger triangle by the known length of the smaller triangle:

$lenght\ scale\ factor=\frac{35}{25}=\frac{7}{5}$

Then, the area scale factor is:

$area\ scale\ factor=(\frac{7}{5})^2=\frac{49}{25}$

To find the area of the the larger triangle, multiply the area of the smaller triangle by the area scale factor. Then:

$A_{(larger)}=(270ft^2)(\frac{49}{25})=529.2ft^2$

So, the option that shows an approximation of the area of the larger triangle is the option A:

$A_{(larger)}$ ≈ $530ft^2$

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