klimenkov
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0 
Questions Answered

pinterestaddict15:
Group Title
A slide 4.1 meters long makes an angle of 35 degrees. To the nearest tenth of a meter, how far above the ground is the top of the slide. Pi…
 updated 2 months ago
 8 replies
 2 Medals
Mathematics

Smschertz:
Group Title
I'm having trouble finding the centroid of a triangle algebraically. I have the midpoints and I also have the median equations, I just don't…
 updated 2 months ago
 11 replies
 3 Medals
Mathematics

SwiftRainHawk:
Group Title
Susan begins counting backwards from 1298 by 4's, saying one number every 5 seconds. At the same time, Jim begins counting forward from 171 …
 updated 2 months ago
 7 replies
 2 Medals
Mathematics

sulsha:
Group Title
AB is a line segment and line l is its perpendicular bisector.if a point P lies on l .show that P is equidistant from A and B
 updated 5 months ago
 1 reply
 No Medals Yet
Mathematics

Silverlark2:
Group Title
The normal to the curve, y= 13tan(x) at the point where the curve crosses the y axis, also passes through the point (k,3) . Find k.
Ans…
 updated 5 months ago
 2 replies
 No Medals Yet
Mathematics

LXelle:
Group Title
f(x) = 6/(2x+3)for x>=0
Find an expression, in terms of x, for f'(x) and explain how your answer shows that f is a decreasing function.
 updated 5 months ago
 11 replies
 No Medals Yet
Mathematics

camerondoherty:
Group Title
Help?
 updated 7 months ago
 12 replies
 2 Medals
Mathematics

klimenkov:
Group Title
My English is not perfect, so please help me to correct mistakes in resume.
…
 updated 7 months ago
 6 replies
 2 Medals
Mathematics

klimenkov:
Group Title
Two points on the plane \(A\) and \(B\) are given. \(AB = 2\). \(C\) is a randomly picked point in the circle of the radius \(R\) with the…
 updated 9 months ago
 37 replies
 5 Medals
Mathematics

oksuz_:
Group Title
help!!
 updated 9 months ago
 8 replies
 2 Medals
Mathematics

klimenkov:
Group Title
\[\int_{\frac{\pi}2}^{\frac{\pi}2} \frac{\sin^{2014}x}{\sin^{2014}x + \cos^{2014}x} \, dx\]
 updated 9 months ago
 20 replies
 4 Medals
Mathematics

hartnn:
Group Title
f(z)=(x^33xy^2+2xy)+ i(3x^2 yx^2+y^2y^3) is analytic, find \(f^' (z)\) & f(z) in terms of z
 updated 9 months ago
 50 replies
 5 Medals
Mathematics

BSwan:
Group Title
did u see that proof for why in any 3 digit number in base b, must have only one of these 3 digit numbers that satisfies the equation 1/(b…
 updated 9 months ago
 11 replies
 No Medals Yet
Mathematics

ltp1212:
Group Title
Write the equation of the line that is perpendicular to the given segment and that passes through the point (–6, –3).
 updated 9 months ago
 3 replies
 No Medals Yet
Mathematics

FeniGo:
Group Title
How to prove that the quadrilateral formed by joining the midpoints of adjacent sides of a rectangle is a rhombus?
 updated 9 months ago
 3 replies
 2 Medals
Mathematics

shubhamsrg:
Group Title
(sqrt2^(sqrt2^(sqrt2....))))=x
Solving it via conventional method yields x=2 and 4.
How do I find out which one it is ?
 updated 9 months ago
 5 replies
 1 Medal
Mathematics

DejanaThuston:
Group Title
Which of the following functions represents a cell phone bill if there is a monthly charge of 20 dollars plus 6 cents for each minute of us…
 updated 9 months ago
 2 replies
 No Medals Yet
Mathematics

geerky42:
Group Title
The radius, r, of the base of a circular cylinder increases by 2 feet per second while the height, h, decreases by 1 foot per second. How fa…
 updated 9 months ago
 2 replies
 2 Medals
Mathematics

AshEatsRainbows:
Group Title
2 + a + b = a + 2 + b is an example of which algebraic property?
 updated one year ago
 3 replies
 No Medals Yet
Mathematics

izhangy:
Group Title
what is 4^(3/2)? How do you show work for it?
 updated one year ago
 33 replies
 2 Medals
Mathematics

connexus.com:
Group Title
Ok so on this what do I do
(Please don't give me the answer I just want to know what I need to do on it)
…
 updated one year ago
 33 replies
 3 Medals
Mathematics

Loser66:
Group Title
If A is an n x n matrix function such that A and \(\frac{dA}{dt}\)are the same function, then A = c\(e^tI_n\)for some constant c.
True or f…
 updated one year ago
 18 replies
 5 Medals
Mathematics

TimmyG:
Group Title
I need help with finding the inverse of this function, 2x^5+x^3+1.
 updated one year ago
 42 replies
 3 Medals
Mathematics

My15girl:
Group Title
This is discrete functions. Can someone please help?? I can't figure out what I am doing wrong. I am supposed to get the indicated sum, but…
 updated one year ago
 10 replies
 2 Medals
Mathematics

onegirl:
Group Title
Find all critical numbers and use the Second Derivative Test to determine all local extrema. y = x^3  3x^2  9x
 updated one year ago
 2 replies
 No Medals Yet
Mathematics

appleduardo:
Group Title
whats the integral for x^4 / (1x) ??
 updated one year ago
 6 replies
 4 Medals
Mathematics

helpmeplease123451:
Group Title
please help me simplify this equation!! i will give a medal! i am so confused
 updated one year ago
 4 replies
 No Medals Yet
Mathematics

Haruhi:
Group Title
Write y = 3x as a logarithmic function.
Is it x = log3^y?
 updated one year ago
 7 replies
 1 Medal
Mathematics

Ted.knows.it:
Group Title
Prove the following inequality: equation attached.
 updated one year ago
 23 replies
 2 Medals
Mathematics

qwerty54321:
Group Title
Is it true that if F is a plane vector field such that ∮_c(F.dr)=0 for every closed curve C, then ∫_c(F.dr)=0 for every curve C? Please expl…
 updated one year ago
 8 replies
 No Medals Yet
Mathematics
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