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Questions Answered

MARC_:
Group Title
12.which of the following reaction below must be carried out in a fume cupboard? @Abhisar @Callisto
 updated 2 months ago
 10 replies
 1 Medal
Mathematics

FireWolfSpirit:
Group Title
Can you change your username? @ganeshie8 @Callisto @iambatman @TuringTest @jagatuba
 updated 2 months ago
 5 replies
 3 Medals
Mathematics

Mkitchin:
Group Title
Solve the equation cos x° = sin 40°, where 0 < x < 90.
 updated 2 months ago
 13 replies
 1 Medal
Mathematics

Arianaluvsu:
Group Title
Boy bring your friends, if you want we can share
or we can keep it simple baby we can just ride with it, ride with it, i know, you know, i …
 updated 2 months ago
 1 reply
 No Medals Yet
Mathematics

lilia222:
Group Title

 updated 2 months ago
 8 replies
 2 Medals
Mathematics

madinaxxx:
Group Title
The CO2 produced, collected and cooled to O⁰C at 1atm. It is found to take up approximately 22.4 L. How many molecules of CO2 were produced?
 updated 2 months ago
 2 replies
 1 Medal
Mathematics

Jesstho..:
Group Title
Merry xmas everyone!
Here's how you say Merry Christmas in 44 Languages :P
 updated 2 months ago
 38 replies
 11 Medals
Mathematics

Callisto:
Group Title
It would be better if there is a post pinned at the top of each group stating the rules. This way, users, in particular moderators, need not…
 updated 2 months ago
 26 replies
 11 Medals
Mathematics

Abhisar:
Group Title
Computer science section rules framed by Admins
Original post by @farmdawgnation …
 updated 2 months ago
 8 replies
 11 Medals
Mathematics

sleepyjess:
Group Title
Which of the following is a product formed when Ag2O decomposes?
Ag2
…
 updated 3 months ago
 22 replies
 1 Medal
Mathematics

Kainui:
Group Title
Can we represent a matrix in a matrix?
 updated 3 months ago
 36 replies
 2 Medals
Mathematics

ParthKohli:
Group Title
Nice problem with a nice solution.
 updated 3 months ago
 37 replies
 5 Medals
Mathematics

wr:
Group Title
okay this is starting to piss me off right now! my friend and I have been trying to sign up in here for an hour now! what's happening is tha…
 updated 3 months ago
 12 replies
 1 Medal
Mathematics

wr:
Group Title
HELP!
I told my friend about OS and he wanted to sign up.
when he filled out everything it says something like "it appears that your IP ad…
 updated 3 months ago
 11 replies
 No Medals Yet
Mathematics

niccco_:
Group Title
How can you permanently delete a question? I accidentally posted a math question under History and I closed it, but that doesn't really dele…
 updated 3 months ago
 15 replies
 9 Medals
Mathematics

ParthKohli:
Group Title
How do we not have a law group yet?!
 updated 3 months ago
 19 replies
 3 Medals
Mathematics

eric_d:
Group Title
Differentiate following with respect to x
a) ln ( x^2 + 1 )
 updated 3 months ago
 19 replies
 3 Medals
Mathematics

eric_d:
Group Title
By using differentiation of product rule, find dy/dx of y=x cos x
 updated 3 months ago
 42 replies
 2 Medals
Mathematics

**CREEPYMLPMASTER**:
Group Title
Can you guys please make Open Study compatible with Internet Explorer 11? I know it works with IE 9 but that is really outdated when you try…
 updated 3 months ago
 11 replies
 8 Medals
Mathematics

kryton1212:
Group Title
Let m1, r1 and v1 be the mean, the range and the variance of a group of numbers {x1,x2,x3...,x100} respectively. If m2, r2 and v2 are the me…
 updated 3 months ago
 25 replies
 1 Medal
Mathematics

kryton1212:
Group Title
Find the range of values of k such that the circle \(x ^{2}+y ^{2}+2x4y13=0\) and the straight line xy+k=0 intersect at two distinct poin…
 updated 3 months ago
 17 replies
 1 Medal
Mathematics

kryton1212:
Group Title
The figure shows a regular tetrahedron ABCD. Find the angle between the plane ABC and the plane BCD correct to the nearest degree.
 updated 3 months ago
 38 replies
 2 Medals
Mathematics

kryton1212:
Group Title
In the figure, ABCD is a rectangle. CDE is a straight line and AE//BD. If the area of ABCD is 24 and F is a point on BC such that BF:FC=3:1,…
 updated 3 months ago
 21 replies
 2 Medals
Mathematics

oregon23:
Group Title
HELP!!!!!1 I WILL MEADEL ADFANPEASE HELP @hartnn @Hero @iGreen PLEASE HELP @Directrix AD PLEASE HELP @Compassionate @Callisto!!!
write 2,50…
 updated 3 months ago
 20 replies
 2 Medals
Mathematics

mhayden:
Group Title
(1+sinx)/cosx=cosx/(1sinx)
 updated 3 months ago
 7 replies
 1 Medal
Mathematics

kryton1212:
Group Title
In the figure, ABDF and ACEG are straight lines. If the area of triangle ABC is 16 cm2 and the area of quadrilateral BDEC is 20 cm2, then th…
 updated 3 months ago
 39 replies
 2 Medals
Mathematics

kryton1212:
Group Title
In the figure, ABCD is a parallelogram. E and F are points on AD and BC resepctively such that AB//EF. EP meets AC at G. If AG:GC=1:2, then …
 updated 3 months ago
 23 replies
 3 Medals
Mathematics

kryton1212:
Group Title
In the figure, the paper cup in the form of a circular cone contains 10 ml of water. How many ml of water must be added to fill up the paper…
 updated 3 months ago
 15 replies
 1 Medal
Mathematics

zmorron14:
Group Title
A car is moving at a constant speed along a straight line. Which statement is true about the forces acting on the car?
 updated 3 months ago
 4 replies
 No Medals Yet
Mathematics

kryton1212:
Group Title
In the figure, a right pyramid with a square base is divided into three parts A,B and C by two planes parallel to the base such that the len…
 updated 3 months ago
 32 replies
 3 Medals
Mathematics
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