Mathematics, 09.12.2020 18:50 dayi80
Elevator 1 in an office building moved from ground position to a final position of -14 feet. Elevator 2 in the same building moved from ground to a final position of +18 feet. Which statement best describes the final positions of these two elevators? A. Elevator 1 is 14 feet below ground level, and Elevator 2 is 18 feet above the position of Elevator 1.
B. Elevator 1 is 14 feet above ground level, and Elevator 2 is 18 feet below the position of Elevator 1.
C. Elevator 1 is 14 feet above ground level, and Elevator 2 is 18 feet below ground level.
D. Elevator 1 is 14 feet below ground level, and Elevator 2 is 18 feet above ground level.
Answers: 1
Mathematics, 21.06.2019 18:00
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Mathematics, 21.06.2019 19:50
Prove (a) cosh2(x) − sinh2(x) = 1 and (b) 1 − tanh 2(x) = sech 2(x). solution (a) cosh2(x) − sinh2(x) = ex + e−x 2 2 − 2 = e2x + 2 + e−2x 4 − = 4 = . (b) we start with the identity proved in part (a): cosh2(x) − sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 − sinh2(x) cosh2(x) = 1 or 1 − tanh 2(x) = .
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Mathematics, 21.06.2019 20:00
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Mathematics, 21.06.2019 22:20
Cone a has a surface area of 384 ft2 and cone b has a surface area of 96 ft? . what is the ratio of their volume?
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Elevator 1 in an office building moved from ground position to a final position of -14 feet. Elevato...
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