Mathematics, 29.06.2019 22:40 cecilysimpson3089
If a pebble is dropped into a pond in the shape of an ellipse at the location of one focus, the waves will converge at the location of the other focus. if the pond has a major axis of 68 feet and a minor axis of 32 feet, how far apart are the foci? the answer is 60 but how do i get this
Answers: 3
Mathematics, 21.06.2019 18:00
On saturday a souvenir shop had 125 customers.sixty four percent of the costumers paid with a credit card. how many costumers paid with cash?
Answers: 1
Mathematics, 22.06.2019 03:30
Atechnician compares repair costs for two types of microwave ovens (type i and type ii). he believes that the repair cost for type i ovens is greater than the repair cost for type ii ovens. a sample of 6767 type i ovens has a mean repair cost of $79.79$79.79. the population standard deviation for the repair of type i ovens is known to be $19.18$19.18. a sample of 5555 type ii ovens has a mean repair cost of $75.24$75.24. the population standard deviation for the repair of type ii ovens is known to be $21.40$21.40. conduct a hypothesis test of the technician's claim at the 0.050.05 level of significance. let μ1μ1 be the true mean repair cost for type i ovens and μ2μ2 be the true mean repair cost for type ii ovens. step 2 of 4 : compute the value of the test statistic. round your answer to two decimal places.
Answers: 2
If a pebble is dropped into a pond in the shape of an ellipse at the location of one focus, the wave...
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