Mathematics, 04.12.2020 16:50 Almonte87
The account balance of each of three children at the end of a month is shown below: John has β$2.75 Cheryl has β$3.00 Andrew has as much savings in his account as the amount John owes the bank. Part A: On a blank paper, draw a number line from β4 to +4. Plot points on the number line to show the account balances of the three children. Label the points using the name of each child. Describe in detail how you created and labeled this number line, and what it looks like in detail. (5 points) Part B: Determine whether John or Cheryl owes the bank more. Use inequalities to write statements (a sentence or two) that justify your conclusion. (5 points)
Answers: 3
Mathematics, 21.06.2019 14:30
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Mathematics, 21.06.2019 16:30
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Mathematics, 21.06.2019 19:50
Prove (a) cosh2(x) β sinh2(x) = 1 and (b) 1 β tanh 2(x) = sech 2(x). solution (a) cosh2(x) β sinh2(x) = ex + eβx 2 2 β 2 = e2x + 2 + eβ2x 4 β = 4 = . (b) we start with the identity proved in part (a): cosh2(x) β sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 β sinh2(x) cosh2(x) = 1 or 1 β tanh 2(x) = .
Answers: 3
The account balance of each of three children at the end of a month is shown below: John has β$2.75...
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