Try this website, I don't know too much about this stuff but I found a website that explains by text and video. http://www.statisticshowto.com/how-to-use-a-probability-tree-for-probability-questions/

7 0

3 years ago

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Please Help!! [ tough geometry question :( ]

kaheart [24]

Answer: $133^{\circ}$

Step-by-step explanation:

Opposite angles of a cyclic quadrilateral are supplementary, so:

$4x+5+x+15=180\\\\5x+20=180\\\\5x=160\\\\x=32$

This means that $m\angle A=4(32)+5=\boxed{133^{\circ}}$

3 0

2 years ago

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Two angles of a triangle are 28 ∘ and 81 ∘ . What is the measure of the third angle?

klasskru [66]

Answer: 71

Step-by-step explanation: A triangle adds up to 180 so you subtract 28 and 81 from 180 to get your answer

6 0

3 years ago