For 30
1. the speed of a current in a river is 6 mph. a ferry operator who works that p...
Mathematics, 16.01.2020 05:31 yeahmaneee
For 30
1. the speed of a current in a river is 6 mph. a ferry operator who works that part of the river is looking to buy a new boat for his business. every day, his route takes him 22.5 miles each way against the current and back to his dock, and he needs to make this trip in a total of 9 hours. he has a boat in mind, but he can only test it on a lake where there is no current. how fast must the boat go on the lake in order for it to serve the ferry operator's needs?
my no idea
2. the sum of the reciprocals of two consecutive positive integers is 17/72. write an equation that can be used to find the two integers. what are the integers?
my no idea
[(x^2-16)/(x^2+5x+6)]/[(x^2+5x+4)/( x^2-2x-8)]
3. what is the quotient in simplified form? state any restrictions on the variable.
a. [(x-4)^2]/[(x+3)(x+1)]; x cannot equal -3 or -1
b. [(x-4)^2]/[(x+3)(x+1)]; x cannot equal -4,-3,-2,-1, or 4
my i think it is a, but i thought that that restrictions were -4,-3,-2, and -1 but not 4.
Answers: 3
Mathematics, 21.06.2019 16:50
Kapil needed to buy a long wooden beam. he went to two sawmills that each charge an initial fee plus an additional fee for each meter of wood. the following equation gives the price (in dollars) of a wooden beam from the first sawmill as a function of its length (in meters). p = 5+20xp=5+20x
Answers: 1
Mathematics, 21.06.2019 19:30
Richard save $32 in march he saved $48 in april and $38 in may then richard spent $113 on a keyboard how much money does richard have left
Answers: 1
Mathematics, 21.06.2019 19:30
What is the result of adding the system of equations? 2x+y=4 3x-y=6
Answers: 2
Mathematics, 21.06.2019 20:20
Recall that the owner of a local health food store recently started a new ad campaign to attract more business and wants to know if average daily sales have increased. historically average daily sales were approximately $2,700. the upper bound of the 95% range of likely sample means for this one-sided test is approximately $2,843.44. if the owner took a random sample of forty-five days and found that daily average sales were now $2,984, what can she conclude at the 95% confidence level?
Answers: 1
Mathematics, 14.12.2020 18:50
Chemistry, 14.12.2020 18:50
Social Studies, 14.12.2020 18:50
Mathematics, 14.12.2020 18:50
History, 14.12.2020 18:50
History, 14.12.2020 18:50
Physics, 14.12.2020 18:50
English, 14.12.2020 18:50
English, 14.12.2020 18:50
Mathematics, 14.12.2020 18:50
Mathematics, 14.12.2020 18:50
Mathematics, 14.12.2020 18:50
Social Studies, 14.12.2020 18:50