Advanced Math/Expert Profile

Average Ratings

• Knowledgeability 9.86
• Clarity of Response 9.84
• Timeliness 9.69
• Politeness 9.96

• Number of Questions (in Past 24 Hours) 0
• Max Questions to be Asked (in 24 Hour Period) 2
• Total Questions (since joining AllExperts) 1188
• Volunteer Since 2004-04-19
• Prestige Points 7692

Recent Reviews from Users

Read More Comments

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

User	Date	K	C	T	P	Comments
Katharine	11/19/09	10	9	9	10	okay, thank you so much for your .....
Stephen	11/18/09	10	10	10	10	Thank you very much for explaining in .....
dimitrz	11/15/09	10	10	10	10	Thanks for the insight Ahmed
Cindy	11/10/09	10	10	10	10	Thank you!
Cindy	11/10/09	10	10	10	10	Thank you!

Recent Answers from Ahmed Salami

2009-11-16 algebra 2:

Hi Katharine, You havent done anything wrong (except maybe making a mistake in the presentation of the expression). Except that i'm missing something here, but i dont think the equation x^5 - 9x^4

2009-11-15 Simultaneous equations:

Hi Stephen, 1) Let the number of 50p coins be x and those of 20p coins be y 50p in x places + 20p in y places = £17.10 i.e x(0.50) + y(0.20) = 17.10 The total number of coins is 54 and so x + y =

2009-11-13 Precalculus:

Hi Edward, In quadrant II, sin u and sin v are positive but all of cos u, cos v, tan u and tan v are negative. Also, sin(A+B) = sinA.cosB + sinB.cosA sin(A-B) = sinA.cosB - sinB.cosA cos(A+B) = cosA

2009-11-12 Utilization:

Hi Dimitrz, 1) Yes, your calculation is correct. 2) Well, there is definitely a flaw in the assumption that your team has been utilized more. Lets work backwards here. If a person works 192 hours a

2009-11-10 calculus:

Hi Alexandra, I'm taking the 6 to be the base of logarithm here. logA + logB = logAB So, log6 (x+2) + log6 (x-1) = 3 log6 [(x+2)(x-1)] = 3 Therefore, (x+2)(x-1) = 6³ x² + x - 2 = 216 x² + x -