Mathematics, 20.07.2019 01:00 bnbjj
On jiamin's trip to wisconsin, her average rate of speed for the whole 5-hour trip was 62 miles per hour. for the first two hours of her trip, she kept her average speed at 60 miles per hour. then she realized she was going to be late, so she started driving faster. what was her average speed for the last three hours of her trip?
Answers: 1
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Ammonia molecules have three hydrogen atoms and one nitrogen atom.how many of each atom arein five molecules of ammonia
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Mathematics, 21.06.2019 19:50
Prove (a) cosh2(x) ā sinh2(x) = 1 and (b) 1 ā tanh 2(x) = sech 2(x). solution (a) cosh2(x) ā sinh2(x) = ex + eāx 2 2 ā 2 = e2x + 2 + eā2x 4 ā = 4 = . (b) we start with the identity proved in part (a): cosh2(x) ā sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 ā sinh2(x) cosh2(x) = 1 or 1 ā tanh 2(x) = .
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Mathematics, 22.06.2019 04:00
Question 27 of 28 1 point what is the slope of the line shown below? (3,-2) (2,-4)
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Mathematics, 22.06.2019 04:00
The length of a rectangular plot of land is given by the expression 6x^3y^4. the width of the plot is given by the expression 5x^5y^4z. find an expression to represent the area of the rectangular plot.
Answers: 1
On jiamin's trip to wisconsin, her average rate of speed for the whole 5-hour trip was 62 miles per...
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