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koban [17]
3 years ago
15

In a classroom of 20 students, 70% of them have brown eyes. If a teacher picks two students at random to pass out supplies, what

is the probability he chooses two students without brown eyes?​
Mathematics
1 answer:
antiseptic1488 [7]3 years ago
4 0

Answer:

6/20 can I get brainliest pleast

Step-by-step explanation:

\frac{70}{100}  \times 20 = 14 \\ 20 - 14 = 6 \\

there is a chance that the teacher will pick a student without brown eyes 6/20 times

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When the given angle is opposite the shorter of the given sides, there will generally be two solutions. The exception is the case where the triangle is a right triangle (the ratio of the given sides is equal to the sine of the given angle). If the given angle is opposite the longer of the given sides, there is only one solution.

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Here, the law of sines can be used to solve the triangle:

A = arcsin(a/c·sin(C)) = arcsin(25/24·sin(70°)) = 78.19° or 101.81°

B = 180° -70° -A = 31.81° or 8.19°

b = 24·sin(B)/sin(70°) = 13.46 or 3.64

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