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e-lub [12.9K]
3 years ago
7

Determine the approximate value of a. 18.11 7.05 7.95 9.71

Mathematics
1 answer:
Alex777 [14]3 years ago
6 0

Answer:

7.95

Step-by-step explanation:

In order to solve this, we need to use the rule of sine which is (a/sinA)=(b/sinB)=(c/sinC). Since we have both values of c we can do (12/sin104), which equals ~12.37. Therefore, since we already have A, 12.37=(a/sin40). We can change this by doing sin40×12.37=a. sin40×12.37=7.95.

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A city bus collected $780 in fares on one day.
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Answer:

450 people paid the discounted fare and 750 people paid the regular fare.

Step-by-step explanation:

let r be regular fares paid and d be discounted fares paid

Total fares = 0.8r + 0.4d = 780

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r + d = 1200 = Total people

Rearrange this formula:

r = 1200 - d

Substitute r into Total Fares formula

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3 0
3 years ago
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Hi there! :)

Answer:

\huge\boxed{f(1) + f(5) = 30}

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