Compared to last year, the population has increased 25%. The population is now 6,600. What was the population last year?
2 answers:
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Answer:
Step-by-step explanation:
4). By applying cosine rule for angle R,
cos(∠R) =
cos(33°) = [Equation]
x = 19cos(33°)
= 8.39
5). By applying sine rule,
cos(20°) =
cos(20°) = [Equation]
x =
x = 15.96
6). By applying tangent rule,
tan(40°) =
tan(40°) = [Equation]
x =
x = 17.88