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3 years ago

Triangle A B C. Angle C is 80 degrees and angles B and A are y degrees. What is the value of y in the triangle? Angle y = °

Mathematics

2 answers:

yKpoI14uk [10]3 years ago

7 0

Answer:

50 degrees

Step-by-step explanation:

Hope this helps

Marrrta [24]3 years ago

4 0

Answer:

Step-by-step explanation:

a triangle's sum of all angles is 180 degrees

so a+b+c=180

we know c=80

and a=b

so that'll be

2y+80=180

subtract 80 from each side

2y=100

divide by 2

y=50

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Answer:

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Step-by-step explanation:

The given sequence is

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$r_2=\dfrac{a_3}{a_2}=\dfrac{4}{16}=\dfrac{1}{4}$

$r_3=\dfrac{a_4}{a_3}=\dfrac{1}{4}$

It is a geometric series because it has a common ratio $r_1=r_2=r_3=\dfrac{1}{4}$ .

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The explicit formula of a geometric series is

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Substitute a=64 and r=1/4 in the above function.

$f(n)=64(\frac{1}{4})^{n-1}$

Therefore, the required explicit formula is $f(n)=64(\frac{1}{4})^{n-1}$ .

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