Mathematics, 21.02.2021 07:00 maribel3621
a rectangular doorway has a temporary support beam across its diagonal. the height of the doorway is 2 times its width. if the beam across the diagonal is 14 feet, how wide is the door?
Answers: 1
Another question on Mathematics
Mathematics, 21.06.2019 18:30
Water flows at a steady rate from a tap. its takes 40 seconds to fill a 4 litre watering can from the tap. the rate at which water flows from the tap is halved. complete: 4 litres into cm3
Answers: 3
Mathematics, 21.06.2019 19:30
Now max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.
Answers: 1
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
You know the right answer?
a rectangular doorway has a temporary support beam across its diagonal. the height of the doorway is...
Questions
Business, 27.01.2022 06:10
Chemistry, 27.01.2022 06:10
Mathematics, 27.01.2022 06:10
Mathematics, 27.01.2022 06:10
Mathematics, 27.01.2022 06:10
Mathematics, 27.01.2022 06:10
Chemistry, 27.01.2022 06:10
Physics, 27.01.2022 06:10
Advanced Placement (AP), 27.01.2022 06:10
History, 27.01.2022 06:20
Mathematics, 27.01.2022 06:20
