Calendar Log Out s2-3 S18> Assessment Fahad A Due Sat 02/03/2018 4:59a When cons

Question

Calendar Log Out s2-3 S18> Assessment Fahad A Due Sat 02/03/2018 4:59a When constructing the Hoover Dam concrete flowed out of a cement mixer at a constant rate of change of 88 tons per 5 minutes. If t represents the varying number of minutes elapsed since 12:00 am... a. Which of the following quantities are varying in this situation? Select all that apply. the number of minutes elapsed since 12:00 am the number of tons of concrete produced in 2 minutes the number of tons of concrete left to produce to cormplete the Hoover Dam the number of tons of concrete in the completed Hoover Dam the number of tons of concrete produced since the start of construction b. As the number of minutes since 12:00 am changes from t 104 tot 130, what is the corresponding change in the number of tons of concrete produced, n How many tons of concrete were produced during any 26-minute period of time? c. d. How many tons of concrete were produced during any 1-minute period of time? tons Preview e. How many tons of concrete were produced during any 0.4 minute period of time? tons Preview t. Use delta notation to write a fo to nt the change in the n of tons ofconcrete produced, ', in terms of the c e in the number of

Explanation / Answer

88tons per 5 min

So, 88/5 or 17.6 tons per min was the outflow rate

a)
Option A
Option C
Option E

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b)
104 to 130
So, time elapsed = 26

So, concerete produced = 26 * 17.6

457.6 ---> ANS

Didnt work?
Just enter delta(n)

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c)
457.6 tons

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d)
17.6 tons

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e)
17.6 * 0.4

7.04 tons

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f)
deltan = 17.6 * delta(t) ---> ANS

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