Mathematics, 23.07.2021 21:40 TamB01
A freight train made a trip to NYC and back. The trip there took nine hours and the trip back took 15 hours It averaged 33 km/hour on the return trip. Find the average speed of the trip there.​
Answers: 3
Mathematics, 21.06.2019 15:00
Which sum or difference identity would you use to verify that cos (180° - ∅) = -cos ∅? a. sin (α -β) = sin α cos β – cos α sin β b. cos (α -β) = cos α cos β – sin α sin β c. cos (α -β) = cos α cos β + sin α sin β d. sin (α + β) = sin α cos β + cos α sin β
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Mathematics, 21.06.2019 18:00
Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2
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Mathematics, 21.06.2019 20:00
The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16
Answers: 3
A freight train made a trip to NYC and back. The trip there took nine hours and the trip back took 1...
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