Help with geometry hw

Mathematics

1 answer:

love history [14]3 years ago

4 0

A and a' are vertical angles, therefore a' = a

We know: The sum of the measures of triangle is always 180°.

Therefore: a' + b + d = 180° → d = 180° - a - b.

d and c are adjacent angles, therefore d + c = 180°

substitute

180° - a - b+ c = 180° |-180°
-a - b + c = 0 |+a |+b
c = a + b

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Answer:

hello there,

the answer for this equation is:

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Step-by-step explanation:

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2.8, 3.4, 4.0, 4.6, . . . Write an equation for the nth term of the arithmetic sequence. Then find a50.

vova2212 [387]

Answer:

a_n = 2.2 + 0.6 n

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Step-by-step explanation:

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Expression for the nth term:

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