3psilon
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Questions Answered

3psilon:
Group Title
What intervals are y = (x^2+1)/x^2 concave upward?
 updated one year ago
 4 replies
 No Medals Yet
Mathematics

yrelhan4:
Group Title
Two blocks of masses m1=2kg and m2=5kg hang over a massless pulley as in the figure. A force F=100N acting on the axis of the pulley acceler…
 updated one year ago
 21 replies
 1 Medal
Mathematics

3psilon:
Group Title
How to integrate vectors? ??
 updated one year ago
 3 replies
 No Medals Yet
Mathematics

3psilon:
Group Title
You do a certain amount of work on an
object initially at rest, and all the work goes
into increasing the object’s speed. If you do
…
 updated one year ago
 8 replies
 1 Medal
Mathematics

3psilon:
Group Title
p = ks and k is a constant
s = nt and n is a constant
How is p directly proportional to t? I don't get it
 updated one year ago
 4 replies
 No Medals Yet
Mathematics

3psilon:
Group Title
In a list of 100 numbers , the fraction of numbers greater than 15 is (19/25) and the fraction of numbers less than 15 is (7/50). How many n…
 updated one year ago
 3 replies
 1 Medal
Mathematics

3psilon:
Group Title
tanx = 1 . What is X . How do you find X with tan . I have forgotten this from trig
 updated one year ago
 13 replies
 1 Medal
Mathematics

828282:
Group Title
what`s the lewis structure for CH3OO?
 updated one year ago
 36 replies
 2 Medals
Mathematics

Yolala:
Group Title
Elements, unlike compounds, are pure substances
 updated one year ago
 7 replies
 1 Medal
Mathematics

3psilon:
Group Title
SAT Help! A bag contains 8 white marbles, 8 blue marbles, 7 red marbles , and 6 yellow marbles. what is the least number of marbles that can…
 updated one year ago
 3 replies
 2 Medals
Mathematics

3psilon:
Group Title
SAT help ! In the figure, B is the midpoint of AD and BC/CD =2/3 . If a point is chosen at random along the line segment, what is the probab…
 updated one year ago
 3 replies
 No Medals Yet
Mathematics

microscopic:
Group Title
imaginary number
…
 updated one year ago
 3 replies
 No Medals Yet
Mathematics

logynklode:
Group Title
Pre Calc. Can anyone help me?
 updated one year ago
 18 replies
 1 Medal
Mathematics

3psilon:
Group Title
Two vectors A and B have magnitudes of 6m and make an angle of 60 degrees with each other. Find A DOT B.
 updated one year ago
 8 replies
 No Medals Yet
Mathematics

KatClaire:
Group Title
A book slides down a 33.0 degree slope under its own weight. The coefficient of kinetic friction between the book and the slope is 0.300. Wh…
 updated one year ago
 3 replies
 No Medals Yet
Mathematics

3psilon:
Group Title
3^x = 5^y what is x/y ? Plz help . I'm terrible with Logs
 updated one year ago
 20 replies
 2 Medals
Mathematics

3psilon:
Group Title
I am terrible with Logs plz help
 updated one year ago
 17 replies
 1 Medal
Mathematics

tadhanala:
Group Title
(7 + √2) (8  3√2)
 updated one year ago
 7 replies
 2 Medals
Mathematics

TeriK:
Group Title
2/5x 9< 9/10
 updated one year ago
 18 replies
 No Medals Yet
Mathematics

amer83:
Group Title
Hi guys,
Did anyone by any means have old GRE in Physics tests? There are only four samples posted online as far as I could find. DO YOU HA…
 updated one year ago
 8 replies
 1 Medal
Mathematics

3psilon:
Group Title
If a and b are in the domain of a function f and f(a) < f(b), which must be true
(a) a = 0 or b = 0
(b) a < b
…
 updated one year ago
 5 replies
 1 Medal
Mathematics

3psilon:
Group Title
The only prime factors of a number n are 2,5,7, and 17 . Which of the following could NOT be a factor of n?
10
20
…
 updated one year ago
 4 replies
 1 Medal
Mathematics

ConDawg:
Group Title
(2x^2tan(x))/sec(x)
find f ' (x)
…
 updated one year ago
 16 replies
 No Medals Yet
Mathematics

3psilon:
Group Title
Lim ln(x)/(x1) x> 1 why is 1 the answer?
 updated one year ago
 3 replies
 1 Medal
Mathematics

Σ:
Group Title
Starting from rest, a disk takes 10 revolutions to reach an angular velocity w. At constant angular acceleration, how many additional revolu…
 updated one year ago
 7 replies
 1 Medal
Mathematics

3psilon:
Group Title
Why is the integral of dx/x == ln(x)
 updated one year ago
 13 replies
 1 Medal
Mathematics

nikkiwatkins:
Group Title
Rank these elements according to first ionization energy. Na, Li, Rb, K
 updated one year ago
 2 replies
 1 Medal
Mathematics

Rainbow_Dash:
Group Title
Find S for the given geometric series.
a_1 = 0.24 a_5 = 4197.615 r=11.5
 updated one year ago
 10 replies
 No Medals Yet
Mathematics

3psilon:
Group Title
\[\ c5 = \sqrt(4c+1)\]
 updated one year ago
 11 replies
 1 Medal
Mathematics

3psilon:
Group Title
180<theta<270 and cos(theta) = .707 what is the value of tan(theta/2)
 updated one year ago
 3 replies
 No Medals Yet
Mathematics
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