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const2013 [10]
3 years ago
14

Simplify the expression 3.8 - 5.1n - 4n + 5

Mathematics
1 answer:
Elden [556K]3 years ago
7 0

Answer:

8.8-9.1n

Step-by-step explanation:

Add 3.8+5 together to get 8.8, then add -5.1n and -4n to get -9.1n.

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Taya2010 [7]

Answer:

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∠E≅∠M

Step-by-step explanation:

Yes, these triangles are similar.

<em>Proof:</em>

Each side in LNM is 1\frac{2}{3} times longer than the sides in GFE

30/18 = 1\frac{2}{3}

25/15=1\frac{2}{3}

20/12 = 1\frac{2}{3}

According CPCTC (corresponding parts of congruent triangles are congruent), angle E is similar to angle M.

Hope this helps :)

Have a good day!

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3 years ago
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Find the 14th term of the geometric sequence 5 -10 20
Anna [14]

Answer:

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Step-by-step explanation:

The sequence has a first term of 5 and a common ratio of -10/5 = -2, so the n-th term is given by ...

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