Anybody know this? I’m not sure how to do it at all.

Mathematics

2 answers:

irina1246 [14]3 years ago

7 0

Answer:

1. 70°

2. 42°

Step-by-step explanation:

they are both isosceles Triangles as both diagrams state that they have two sides the same length. therefore their base angles will be equal.

1. 55 + 55 = 110

180 - 110 = 70°

2. 180 - 96 = 84

84/2 = 42°

Crazy boy [7]3 years ago

5 0

2 is 42 but i’m not sure about one

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Answer:

$\frac{4}{20}$ or 0.2 or 20%

Step-by-step explanation:

For only two tests to be needed this means that the first test would need to come back as negative and the second test would be to come back as positive. Therefore, to find the probability of this happening we first need to find the probability of each individual test and multiply them together.

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