Mathematics, 14.07.2019 08:00 Homepage10
11 and 13 only11. the sum s of the first n consecutive positive integers, 1, 2, 3, , n, is given by the formula s=0.5n(n+1). find n when s=120 and check your answer by addition.13. a boat travels downstream (with the current) for 36 miles and then makes the return trip upstream (against the current). the trip downstream took 3/4 of an hour less than the upstream trip. if the rate of the current is 4 mph, find the rate of the boat in still water and the time for each part of the trip.
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Mathematics, 21.06.2019 20:30, gwendallinesikes
Is the point (0, 8) on the x-axis or y-axis? how do you know?
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Mathematics, 21.06.2019 21:30, shymitch32
Create a graph for the demand for starfish using the following data table: quantity/price of starfish quantity (x axis) of starfish in dozens price (y axis) of starfish per dozen 0 8 2 6 3 5 5 2 7 1 9 0 is the relationship between the price of starfish and the quantity demanded inverse or direct? why? how many dozens of starfish are demanded at a price of five? calculate the slope of the line between the prices of 6 (quantity of 2) and 1 (quantity of 7) per dozen. describe the line when there is a direct relationship between price and quantity.
Answers: 3
11 and 13 only11. the sum s of the first n consecutive positive integers, 1, 2, 3, , n, is given by...
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