Denebel
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Questions Answered

Christos:
Group Title
What is the derivative of f(x)=cos(x)sin(x) ?
 updated one year ago
 4 replies
 1 Medal
Mathematics

Denebel:
Group Title
Can someone reason how would you find lim as n>infinity of (4^n)/n^2
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

Denebel:
Group Title
Can someone help me with a series of problems concerning series? Will type up in comments.
 updated one year ago
 16 replies
 1 Medal
Mathematics

Nerdy_3000:
Group Title
I really need all the help in these problems because I'm overly confused.
http://oi42.tinypic.com/15qzx42.jpg
 updated one year ago
 17 replies
 1 Medal
Mathematics

Denebel:
Group Title
Would this series converge or diverge?
sum from n=1 to infinity (1/(3n2)^(n+1/2) )? What test would you use?
 updated one year ago
 17 replies
 3 Medals
Mathematics

Nerdy_3000:
Group Title
Can someone help me set up this problem.
http://oi42.tinypic.com/t69h87.jpg
The formula for it is... Arc length= arc measure/360 times 2 t…
 updated one year ago
 2 replies
 1 Medal
Mathematics

cookieowl:
Group Title
What is the surface area of a rectangular prism with length sixteen millimeters, width six millimeters, and height five millimeters?
 updated one year ago
 7 replies
 No Medals Yet
Mathematics

jhline:
Group Title
What is the simplified version of
sqrt(80)/sqrt(10)?
Does it include i?
 updated one year ago
 7 replies
 1 Medal
Mathematics

leen.a:
Group Title
solve using the quadratic formula. 9x^215x+25=0
 updated one year ago
 34 replies
 3 Medals
Mathematics

Denebel:
Group Title
integral of 2(tan x)(sec x)^2 dx = (tan x) ^2 = (sec x)^2? is this so?
 updated one year ago
 6 replies
 2 Medals
Mathematics

Emily778:
Group Title
Find the slant height x of the pyramid shown, to the nearest tenth.
 updated one year ago
 34 replies
 2 Medals
Mathematics

Gabylovesyou:
Group Title
A firecracker shoots up from a hill 160 feet high with an initial speed of 105 feet per second. Using the formula H(t) = −16t2 + vt + s, de…
 updated one year ago
 52 replies
 5 Medals
Mathematics

Christos:
Group Title
Please help me solve this limit, http://screencast.com/t/dpmqBR7voHNG
Without l'Hopital or Continuity Concept!
 updated one year ago
 12 replies
 1 Medal
Mathematics

Denebel:
Group Title
Does ln1(e^x) = xln(e^s)1?
I graphed it but it does not look the same.
…
 updated one year ago
 2 replies
 1 Medal
Mathematics

Denebel:
Group Title
Is this series absolutely convergent, conditionally convergent, or divergent?
Sum from n=1 to infinity of (1) ^ n * [ (3^n)/(2^n + 3^n) …
 updated one year ago
 9 replies
 1 Medal
Mathematics

Denebel:
Group Title
How do you find the lim n > infinity ( n/ (n^21) ^ (1/2) )?
 updated one year ago
 8 replies
 No Medals Yet
Mathematics

v.s:
Group Title
(a) If
F(x) = 12x/(3 + x^2),
find F '(3) and use it to find an equation of the tangent line to the curve
…
 updated one year ago
 3 replies
 No Medals Yet
Mathematics

Brent0423:
Group Title
Find the inverse function of
f(x)= (2x^3)^5
 updated one year ago
 8 replies
 2 Medals
Mathematics

qwerter:
Group Title
1/3=3^2x+2
 updated one year ago
 19 replies
 2 Medals
Mathematics

chicagochica5:
Group Title
For the function rule y = 2x  3, provide the xy coordinates of the yintercept and the xintercept.
…
 updated one year ago
 9 replies
 1 Medal
Mathematics

jewjewbri:
Group Title
What is the slope of the line that passes through the points (3, 5) and (1, 7)?
 updated one year ago
 1 reply
 1 Medal
Mathematics

nursesweetc:
Group Title
Help with factoring polynominal..
…
 updated one year ago
 11 replies
 No Medals Yet
Mathematics

tafara27:
Group Title
Which of the following is not an informative measurement of the length of a snake specimen?
A. 17 inches
…
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

Chiomatn93:
Group Title
how many oxygen atoms are in 4.40g of Al2(so4)3?
 updated one year ago
 5 replies
 No Medals Yet
Mathematics

Hananana:
Group Title
A particle moves on a horizontal line as described by the equation s = t 3 −12t + 3 . a. When is the particle changing directions? b. When i…
 updated one year ago
 8 replies
 No Medals Yet
Mathematics

mathslover:
Group Title
Please help in this question :
Calculate the area of the shaded region
 updated one year ago
 17 replies
 2 Medals
Mathematics

mostfinnest:
Group Title
In 1980, median family income was about $19,000, and in 2000 it was about $40,000. Find the slope of the line passing through points (1980,…
 updated one year ago
 2 replies
 No Medals Yet
Mathematics

rgarcia876:
Group Title
How do I do this problem?
7+3 * [ 8+8 *( 5+9)] they say the answer is 367 but I can't get it right? Thanx
 updated one year ago
 10 replies
 2 Medals
Mathematics

Tamika:
Group Title
can you help me solve this problem? C(x) = a(x  1959)2 + k
 updated one year ago
 3 replies
 No Medals Yet
Mathematics

Shergo21:
Group Title
Apples in a french market cost 2.5 Euros per kilogram. what is the price in dollars per pound. (Based on $ 1.256  Euros .7965)
 updated one year ago
 5 replies
 1 Medal
Mathematics
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