Mathematics, 31.10.2019 01:31 sylviawilliams04
1) if y = x3 + 2x and dx/ dt = 5, find dy/dt when x = 2. give only the numerical answer. for example, if dy, dt = 3, type only 3.
2)the area a = Οr2 of a circular puddle changes with the radius. at what rate does the area change with respect to the radius when r = 5ft?
5Ο ft2/ft
5 ft2/ft
10Ο ft2/ft
25Ο ft2/ft
3)a 25-ft ladder rests against a vertical wall. if the bottom of the ladder slides away from the wall at a rate of 0.18 ft/sec, how fast, in ft/sec, is the top of the ladder sliding down the wall, at the instant when the bottom of the ladder is 20 ft from the wall? answer with 2 decimal places. type your answer in the space below. if your answer is a number less than 1, place a leading "0" before the decimal point (ex: 0.35).
Answers: 3
Mathematics, 21.06.2019 13:30
Adaylily farm sells a portion of their daylilies and allows a portion to grow and divide. the recursive formula an=1.5(an-1)-100 represents the number of daylilies, a, after n years. after the fifth year, the farmers estimate they have 2225 daylilies. how many daylilies were on the farm after the first year?
Answers: 2
Mathematics, 21.06.2019 19:00
Satchi found a used bookstore that sells pre-owned dvds and cds. dvds cost $9 each, and cds cost $7 each. satchi can spend no more than $45.
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Mathematics, 21.06.2019 20:00
If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?
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Mathematics, 21.06.2019 20:00
Need ! the total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?
Answers: 1
1) if y = x3 + 2x and dx/ dt = 5, find dy/dt when x = 2. give only the numerical answer. for example...
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