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kupik [55]
3 years ago
9

Help I will be marking brainliest!!!

Mathematics
2 answers:
IRISSAK [1]3 years ago
3 0

Answer:

im not good with trigangles but illtry to help

Step-by-step explanation:

Anni [7]3 years ago
3 0

Answer:

Step-by-step explanation:

sin60=\frac{HR}{72}\\ \\ HR=72sin60\\ \\ \text{They are checking to see if you know the relationships of the 30,60,90 triangle whos sides opposite of those angles are }1,\sqrt{3},2\\ \\ sin60=\frac{\sqrt{3}}{2}\\ \\ HR=\frac{72\sqrt{3}}{2}\\ \\HR=36\sqrt{3}

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The speed of the boat going with a current is 20 mph. When the boat goes against the current, the speed is 16 mph. Find the spee
adoni [48]

Answer:

The speed of the boat in still water is 18 mph.

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Step-by-step explanation:

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