MAT 250 Graded Exam 2: Chapter 7 application of differentiation

4/26/2018 Graded Exam 2

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Started on Thursday, April 26, 2018, 10:32 AM
State Finished
Completed on Thursday, April 26, 2018, 11:42 AM
Time taken 1 hour 9 mins
Grade 90.00 out of 125.00 (72%)


Question What is the derivative of f(x) = 2x?

1 Select one:
Correct
a. 2x−1
5.00 points out
b. 2x ln 2
of 5.00

c. 2x

d. 2x+1



The correct answer is: 2x ln 2




https://moodle.straighterline.com/mod/quiz/review.php?attempt=1954072 1/18

,4/26/2018 Graded Exam 2
Question Given cos (x + y) = sin x sin y, find dy /dx by implicit differentiation.

2 Select one:
Correct

5.00 points out a.
of 5.00

b.



c.



d.




The correct answer is:




https://moodle.straighterline.com/mod/quiz/review.php?attempt=1954072 2/18

, 4/26/2018 Graded Exam 2
Question An ideal gas satisfies the equation PV = nRT, where P is the pressure, V is the volume, R is a constant, T is the temperature, and n is the

3 number of moles of the gas. State the rate of change of the temperature with respect to time in terms of P, V, R, and n.

Correct
Select one:
5.00 points out

of 5.00
a.

b. 0



c.

d. none of the above




The correct answer is:




https://moodle.straighterline.com/mod/quiz/review.php?attempt=1954072 3/18