Mathematics, 28.04.2021 21:10 KalistaBab
In an aquarium, the ratio of dolphins to pufferfish is 2 : 3 and the ratio of pufferfish to star fish is 4 : 7. There are 8 dolphins in the aquarium how many star fish are there?
Answers: 1
Mathematics, 21.06.2019 15:20
Which is the equation of an ellipse with directrices at x = Β±4 and foci at (2, 0) and (β2, 0)?
Answers: 3
Mathematics, 21.06.2019 18:30
According to the 2008 u.s. census, california had a population of approximately 4 Γ 10^7 people and florida had a population of approximately 2 Γ 10^7 people. which of the following is true? a. the population of florida was approximately two times the population of california. b. the population of florida was approximately twenty times the population of california. c. the population of california was approximately twenty times the population of florida. d. the population of california was approximately two times the population of florida.
Answers: 1
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
Mathematics, 21.06.2019 20:00
Suppose a store sells an average of 80 cases of soda per day. assume that each case contains 24 cans of soda and that the store is open 10 hours per day. find the average number of soda that the store sells per hour.
Answers: 1
In an aquarium, the ratio of dolphins to pufferfish is 2 : 3 and the ratio of pufferfish to star fis...
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