Lei Ye
Assignment Week 10 Prep due 11/14/2012 at 12:19pm EST
Problem 1. 1. (1 pt) Which of the functions is shown in the
following graph?
MA103 F12
Width =
Height =
Answer(s) submitted:
(incorrect)
Correct Answers:
2*sqrt(7/3)
2*7/3
Problem 4. 4. (1 pt)
Lei Ye
Assignment Week 11 Prep due 11/20/2012 at 10:00pm EST
Problem 1. 1. (1 pt) Let f (x) =
7
.
x2 + 1
Problem 6. 6. (1 pt) Consider the function f (x) = 28x3
15x2 + 16x 2. Enter an antiderivative of f (x)
Enter an antiderivative of f (x)
Answer(s) sub
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Assignment Week 12 Prep due 11/28/2012 at 12:23am EST
x3
Problem 1. 1. (1 pt) If f (x) =
MA103 F12
Problem 5. 5. (1 pt) Compute the indenite integral.
t 5 dt then
1 sin2 x
dx
cos x
1
f (x) =
Answer(s) submitted:
Answer:
+C
Answer(s) submitted:
(inc
Lei Ye
Assignment Week 8 Prep due 10/31/2012 at 01:49am EDT
MA103 F12
half-life:
(days)
Problem 1. 1. (1 pt)
(b) How long will it take for a sample of 100 mg to decay
to 58 mg?
(days)
time needed:
If 5000 dollars is invested at 9 percent interest, nd the
Lei Ye
Assignment MA103 Week 4 Quiz due 10/03/2012 at 12:48pm EDT
MA103 F12
(b)
Problem 1. 1. (1 pt)
3x 4,
if x 7
Let f (x) =
8x + b, if x > 7
If f (x) is a function which is continuous everywhere, then we
must have
b=
lim
x
2 + 4x
=
6 5x
Answer(s) submit
Lei Ye
Assignment Week 5 Prep due 10/10/2012 at 02:04am EDT
MA103 F12
Problem 5. 5. (1 pt) If f (x) = 5x2 3x 14, nd f (x).
Problem 1. 1. (1 pt) If f (x) = 4ex 4x5 + 4, nd f (x).
Answer(s) submitted:
4ex-20x4
Solution:
In general the derivative of xn is n