Mathematics, 31.10.2019 04:31 nireegnu
Astudy of driving costs based on 2012 medium-sized sedans found that the average cost (car payments, gas, insurance, upkeep, and depreciation) in cents per mile is approximately:
c(x) = 1910.5/x^1.72 + 42.9 (5 ≤ x ≤ 20)
where x (in thousands) denotes the number of miles the car is driven each year.
show that the graph of c is concave upward on the interval (5, 20).
Answers: 3
Mathematics, 21.06.2019 15:30, jakobrobinette
In δabc, if the length of side b is 3 centimeters and the measures of ∠b and ∠c are 45° and 60°, respectively, what is the length of side c to two decimal places?
Answers: 1
Mathematics, 21.06.2019 21:40, salinasroel22
In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.
Answers: 3
Mathematics, 21.06.2019 23:30, kiaraceballos2880
It takes an ant farm 3 days to consume 1/2 of an apple. at that rate, in how many days will the ant farm consume 3 apples
Answers: 1
Astudy of driving costs based on 2012 medium-sized sedans found that the average cost (car payments,...
Computers and Technology, 19.03.2021 22:20
History, 19.03.2021 22:20
Mathematics, 19.03.2021 22:20