miklin4677

03.10.2019 • 

Mathematics

Р
6. at 1: 30 p.m., an airplane leaves tucson for baltimore, a distance of
2240 miles. the plane flies at 280 miles per hour. a second airplane
leaves tucson at 2: 15 p.m., and is scheduled to land in baltimore 15
minutes before the first airplane. at what rate must the second
airplane travel to arrive on schedule?
inova york at the same time, one traveling north, the other

Ответ:

aa1000220

27.05.2021

Mathematics

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Since this is a 30-60-90 right triangle, we know that the sides exist in the proportion 1:3‾√

:2. The shortest side, 1, is opposite the 30 degree angle. Since side X is opposite the 60 degree angle, we know that it is equal to 1∗3‾√

Or about 1.73. Finally, side Y is opposite the right angle, and it is twice the shortest side, or 2.

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