Mathematics, 07.05.2020 00:11 snowprincess99447
One floor of the Pentagon in Washington, DC has an area of 124,000 square meters. Each side of the building is 281 meters long. How long would the apothem be from the center to one side of the Pentagon? Round your answer to the nearest tenth.
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
Answers: 2
Mathematics, 21.06.2019 19:30
Solve the following simultaneous equation by using an algebraic method (either substitution or elimination) 2x + 3y=-4 4x-y=11
Answers: 1
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