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3 years ago

Find the missing length

Mathematics

2 answers:

Lesechka [4]3 years ago

8 0

Answer:

the answer is 46

Step-by-step explanation:

8 + 20 + 18 = 46

i hope this helps

kifflom [539]3 years ago

4 0

Answer:

? = 45

Step-by-step explanation:

Since the triangles are similar, we can use proportions

20 20+8

------- = -------

? ? + 18

20 28

------- = -------

? ? + 18

Using cross products

20 ( ? +18) = = ? * 28

Distribute

20 ? + 360 = 28 ?

Subtract 20 ? from each side

360 = 8?

Divide each side by 8

360/8 = ?

45 = ?

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Hi!

For this equation, you can solve it by using the quadratic formula:
x=-b<span>±sqrt/b^2-4ab
-----------------------
2a</span>

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