Advanced Math/Expert Profile

Average Ratings

• Knowledgeability 9.93
• Clarity of Response 9.79
• Timeliness 9.93
• Politeness 10.0

• Number of Questions (in Past 24 Hours) 2
• Max Questions to be Asked (in 24 Hour Period) 2
• Total Questions (since joining AllExperts) 645
• Volunteer Since 2008-11-14
• Prestige Points 8180

Recent Reviews from Users

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    K = Knowledgeability    C = Clarity of Response    T = Timeliness    P = Politeness

User	Date	K	C	T	P	Comments
Geli	11/21/09	10	10	10	10	You are great! Thank you.
David Rice	11/16/09	10	10	10	10
Jill	11/16/09	10	10	10	10	Thanks for your help, I appreciate it .....
Katharine	11/16/09	10	9	10	10	Okay, thank you so much!! That makes .....
Celia	11/15/09	10	10	10	10	Thank you for the quick response! I .....

Recent Answers from Sherry Wallin

2009-11-22 need asap help:

For #1- the light is moving 4rev/min (constantly). Think of the lighthouse as being the center of a circle and radius as being the distance from the lighthouse to point P. So the distance traveled in one

2009-11-20 maxima and minima:

for #1 What is m? Is it a variable or a constant? If it is a constant then take the first partial derivatives with respect to each variable, set those equations to zero find their critical values, see

2009-11-19 rules and function tables homework:

Joey, what is that column of numbers? Is that suppose to be values for a? If so, simply take the 2 and put it in for a and then you will have 6+2 = 8 so now you know b = 8. Do this again for a = 10, put

2009-11-18 please help soon:

"In mathematics, the inverse relation of a binary relation is the relation that occurs when you switch the order of the elements in the relation." Complements of Wikipedia. In other words switch x and

2009-11-16 functions:

Hi Katharine~ What you want is a function that when you evaluate it at (x-3) you get x^3+2x^2+7x+1. Shift our x over from x- 3 t x by adding 3: (x+3)^3 +2(x+3)^2 +7(x+3) + 1. When you find that result