Mathematics, 16.10.2019 13:00 alexandra2442
Sam is an apprentice carpenter whose boss asked him to construct a perfectly rectangular frame with a diagonal brace. when sam had finished his boss measured the width of the frame to be 50 cm, the length to be 90 cm and the diagonal brace to be 100 cm. was sam's boss happy with his work? use mathematics to explain how you determined your answer
Answers: 2
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) = .
Answers: 3
Mathematics, 21.06.2019 20:00
Three baby penguins and their father were sitting on an iceberg 0.50.50, point, 5 meters above the surface of the water. the father dove down 4.74.74, point, 7 meters from the iceberg into the water to catch dinner for his kids. what is the father penguin's position relative to the surface of the water?
Answers: 2
Mathematics, 21.06.2019 21:30
Is triangle jkl congruent to triangle rst? if so, what is the scale factor?
Answers: 1
Sam is an apprentice carpenter whose boss asked him to construct a perfectly rectangular frame with...
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