An art museum has 1042 pictures of split equally into 45 different exhibits how many more pictures does a museum need to make su
1 answer:
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Answer:
b ≈ 2.7
Step-by-step explanation:
The missing angle A is ...
A = 180° -53° -80° = 47°
The law of sines tells you ...
b/sin(B) = a/sin(A)
b = sin(80°)×2/sin(47°) ≈ 2.6931
Side b is about 2.7 units.
Or, if you're familiar with the empirical rule and the basic properties of the normal distribution, you can use the fact that approximately
which means about
Because the distribution is symmetric, you have