kwenisha
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Questions Answered

kwenisha:
Group Title
A skier is gliding along at 3.0m/s on horizontal, frictionless snow. He suddenly starts down a incline. His speed at the bottom is 15m/s.
a…
 updated 2 years ago
 4 replies
 1 Medal
Mathematics

kwenisha:
Group Title
Which of the following mechanism best describe the manner in which lysozyme lowers the energy required for its substrate to reach its transi…
 updated 2 years ago
 2 replies
 1 Medal
Mathematics

kwenisha:
Group Title
Alan leaves Los Angeles at 8:00 a.m. to drive to San Francisco, 400 away. He travels at a steady 45.0 . Beth leaves Los Angeles at 9:00 a.m…
 updated 2 years ago
 3 replies
 2 Medals
Mathematics

TRICEPER06:
Group Title
WHAT ARE MOLECULES
…
 updated 2 years ago
 1 reply
 1 Medal
Mathematics

kwenisha:
Group Title
Evaluate \[\sum_{k=0}^{n}(4)^{k}\](n+k choose 2k) in closed form.
 updated 2 years ago
 10 replies
 1 Medal
Mathematics

kwenisha:
Group Title
Prove that for any set of integers, there is a subset of them whose sum is divisible by n.
 updated 2 years ago
 3 replies
 No Medals Yet
Mathematics

kwenisha:
Group Title
Prove that if m and n are positive integers:
1≤k≤n, then \[\sum_{i=0}^{k}(n choose i)(mchooseki)=(m+n choose k)\]
 updated 2 years ago
 5 replies
 1 Medal
Mathematics

marinap97:
Group Title
please help...how do you graph 4x +y > 6
 updated 2 years ago
 2 replies
 1 Medal
Mathematics

marinap97:
Group Title
how would you graph x+y<2
 updated 2 years ago
 7 replies
 1 Medal
Mathematics

kwenisha:
Group Title
The polynomial 1x+x ^{2}x ^{3}+...x ^{15}+x ^{16}x ^{17} can be written as a polynomial in y=x+1. Find the coefficient of y ^{2}
 updated 2 years ago
 27 replies
 5 Medals
Mathematics

kwenisha:
Group Title
The polynomial 1x+x_^{2}x_^{3}+...x_^{15}+x_^{16}x_^{17} can be written as a polynomial in y=x+1. Find the coefficient of y_^{2}
 updated 2 years ago
 1 reply
 No Medals Yet
Mathematics

kwenisha:
Group Title
given a set of (n+1) integers, none of which exceeds 2n, show that at least one of the numbers in the set must divide another number of the …
 updated 2 years ago
 4 replies
 No Medals Yet
Mathematics

kwenisha:
Group Title
Find the smallest positive integer n such that every digit of 15n is 0 or 8.
 updated 2 years ago
 3 replies
 2 Medals
Mathematics

kwenisha:
Group Title
If a function f(x) has derivative at a given point \[x _{i}\]≠0 and if f is continuous there, show that f has derivative
 updated 2 years ago
 2 replies
 1 Medal
Mathematics

kwenisha:
Group Title
Show that if x is positive, then ln(1+1/x)>(1/1+x)
 updated 2 years ago
 5 replies
 3 Medals
Mathematics

kwenisha:
Group Title
Find all differentiable functions defined for x>0 which satisfy ƒ(xy)=ƒ(x)+ƒ(y), x,y>0.
 updated 2 years ago
 5 replies
 1 Medal
Mathematics

kwenisha:
Group Title
May I please have some assistance with my problem? It's a couple of problems down...
Thanks :)
 updated 2 years ago
 3 replies
 No Medals Yet
Mathematics

kwenisha:
Group Title
Find all differentiable functions defined for x>0 which satisfy ƒ(xy)=ƒ(x)+ƒ(y), x.y>0.
 updated 2 years ago
 2 replies
 No Medals Yet
Mathematics

kwenisha:
Group Title
Prove that if a and b positive numbers such that a+b=1, then show that (a+1/a)^2+(b+1/b)^2≥(25/2)
 updated 2 years ago
 26 replies
 3 Medals
Mathematics

kwenisha:
Group Title
On [0,1], let f have continuous derivatives satisfying 0<ƒ'(t)≤1. Also suppose ƒ(0)=0. Prove that (int_{0}^{1}ƒ(t)dt)^{2}≥int_{0}^{1}(ƒ(t))^…
 updated 2 years ago
 19 replies
 3 Medals
Mathematics

kwenisha:
Group Title
Let f(x) be a function such that f(1)=1 and for x≥1 f'(1)=i/(x2+f2(x)). Prove that the limit f(x) exists and the limit is less than 1+(π/4)
 updated 2 years ago
 3 replies
 No Medals Yet
Mathematics

kwenisha:
Group Title
Given f ^{2}=g _{2}+h _{2} where g(x) and h(x) are polynomials with real coefficients, prove that f has nonreal roots
 updated 2 years ago
 8 replies
 1 Medal
Mathematics

kwenisha:
Group Title
For real numbers \[a _{1},a _{2},...a _{n} and b _{1},b _{2},...b _{n}\] show that: \[\sum_{i1}^{n}a _{i}b _{i}\le(\sum_{i1}^{n}a _{i}^{2}…
 updated 2 years ago
 4 replies
 1 Medal
Mathematics

Preetha:
Group Title
Are you an OpenStudy Ambassador?
Are you friendly? Sociable? Willing to help anyone! Are you the student who went to welcome a new kid in …
 updated 2 years ago
 26 replies
 15 Medals
Mathematics

kwenisha:
Group Title
A nice number equals the product of its proper divisor. Find the sum of the first 10 nice numbers.
 updated 2 years ago
 7 replies
 No Medals Yet
Mathematics

kwenisha:
Group Title
HELPPP!!!
Find (cos1°+cos2°+…+cos44°)/(sin1°+sin2°+…+sin44°)
 updated 2 years ago
 22 replies
 4 Medals
Mathematics

Kendra_Jo:
Group Title
How does the complete filling of a subshell affect E?
A. no apparent effect
B. produces chemical stability; therefore decreases E…
 updated 2 years ago
 8 replies
 2 Medals
Mathematics

kwenisha:
Group Title
Find the area of the large square divided by the area of the small square.
Picture is attached
 updated 2 years ago
 8 replies
 1 Medal
Mathematics

kwenisha:
Group Title
How many positive factors of the number 36,000,000 are not perfect squares?
 updated 2 years ago
 15 replies
 1 Medal
Mathematics

kwenisha:
Group Title
Find an expression for the continual radical C=√m+√m+√m+...
in terms of of m that does not involve a continued radical. Then determine all p…
 updated 2 years ago
 9 replies
 2 Medals
Mathematics
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