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IRISSAK [1]
3 years ago
8

Two anhles of trisngle measure 12 and 40. What is the measure of the third angle of the triangle?

Mathematics
1 answer:
Nookie1986 [14]3 years ago
3 0

Answer:

180-(12+40)

180-52=128

Step-by-step explanation:

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Never gonna run around and desert you

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Never gonna let you down

Never gonna run around and desert you

Never gonna make you cry

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Never gonna let you down

Never gonna run around and desert you

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Korolek [52]

9514 1404 393

Answer:

  -108

Step-by-step explanation:

About the easiest way to do this for small values of n is to compute each of the terms using the given recurrence relation.

  a_1=4\\\\a_2=-3a_1=-3(4)=-12\\\\a_3=-3a_2=-3(-12)=36\\\\a_4=-3a_3=-3(36)=-108\\\\\boxed{a_4=-108}

_____

<em>Alternate solution</em>

You recognize that the recurrence relation describes a geometric sequence with a first term of 4 and a common ratio of -3. The n-th term of a geometric sequence is ...

  a_n=a_1\cdot r^{n-1} \qquad\text{for first term $a_1$ and common ratio $r$}

Then the 4th term will be ...

  a_4=4\cdot(-3)^{4-1}=4\cdot(-27)=-108

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w =  {x}^{2}  - 2yz \\  \\ 2yz =  {x}^{2}  - w \\  \\ \huge \red{ y =  \frac{ {x}^{2} - w }{2z} }

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