Register
Login
Username
Password
Login
forgot your password?
Home
Forum
+0
Formulary
Maths
Help
Complex Numbers
Integral Calculus
Differential Calculus
Equations
Graphs
Linear Algebra
Number theory
Percent
Standard Functions
Statistics
Trigonometry
Unit Conversion
Units
About
Imprint
Privacy Policy
Terms of Service
Credits
Google+
Facebook
Contact Email
Post New Question
All Questions
+0
235535 Questions
0
1384
4
Hello My NAmE Is Purple shep, Oh gOLY, wHaT dOeS 'Purple Shep' Mean?
PuRpLe ShEp asks what "Purple Shep" means?
off-topic
●
●
●
●
Guest
Sep 10, 2017
0
4401
1
Help
Let $a_1$, $a_2$, . . . , $a_{10}$ be an arithmetic sequence. If $a_1 + a_3 + a_5 + a_7 + a_9 = 17$ and $a_2 + a_4 + a_6 + a_8 + a_{10} = 15$, then find $a_1$.
geno3141
●
Guest
Sep 10, 2017
0
748
2
Arithmetic series
What is the sum of three consecutive even integers if the sum of the first and third integers is $128$?
●
●
Guest
Sep 10, 2017
0
754
1
Help
The interior angles of a quadrilateral form an arithmetic sequence. If the measure of the largest angle is 129, what is the measure of the second largest angle, in degrees?
●
Guest
Sep 10, 2017
0
862
1
(1/8)(56x-24)=(8/7)(21x-7)+7
(1/8)(56x-24)=(8/7)(21x-7)+7
●
Guest
Sep 10, 2017
0
1068
2
I have a problem with fractions
Consider the set of all fractions
Where x and y are relatively prime positive integers. How many of these fractions have the property that if both numerator and denominator are increased by 1, the value of the fraction
read more ..
●
●
Guest
Sep 10, 2017
Sep 9, 2017
0
1011
1
help need to figure this out, give me an example.
Give a negation of the following inequality. Do not use a slash symbol.
x >16
The negation of the statement is =
●
Guest
Sep 9, 2017
0
936
1
What does r^2 mean?
So to work out the volume of a cylinder you need to do V= pi r^2*h. But what does r^2 mean?
(sorry if it is a dumb question)
●
Guest
Sep 9, 2017
0
578
0
can someone explain how to do linear and angular speed equations?
can someone explain how to do linear and angular speed equations?
Guest
Sep 9, 2017
+1
684
3
algebra
a^2+b^2+c^2=121 and the question is: what is a+b+c=?
The answe is 17 but I don´t know how to prove it and which sort of method I should use. It should be quite easy since the course as a whole is considered to be basic
●
●
●
Guest
Sep 9, 2017
0
786
1
maths help
1 plus 1
off-topic
●
Guest
Sep 9, 2017
+2
1216
1
+489
For how many integers n where is odd?
For how many integers n where is odd?
●
RektTheNoob
Sep 9, 2017
+1
4241
3
+489
Two different integers from 1 through 20 inclusive are chosen at random. What is the probability that both numbers are prime? Express your a
Two different integers from 1 through 20 inclusive are chosen at random. What is the probability that both numbers are prime? Express your answer as a common fraction.
●
●
●
RektTheNoob
Sep 9, 2017
+1
1157
1
+489
While staying in a 15-story hotel, Polya plays the following game. She enters an elevator on the $6^{\mathrm{th}}$ floor. She flips a fair c
While staying in a 15-story hotel, Polya plays the following game. She enters an elevator on the $6^{\mathrm{th}}$ floor. She flips a fair coin five times to determine her next five stops. Each time she flips heads, she goes up one floor. Each time she
read more ..
●
RektTheNoob
Sep 9, 2017
+1
956
1
+489
How many ways are there to put 4 balls in 3 boxes if the balls are not distinguishable but the boxes are?
How many ways are there to put 4 balls in 3 boxes if the balls are not distinguishable but the boxes are?
●
RektTheNoob
Sep 9, 2017
0
4166
1
+168
Chords $\overline{WY}$ and $\overline{XZ}$ of a circle are perpendicular. If $XV = 4$, $WV = 3$, and $VZ = 9$, then find $YZ$.
Chords $\overline{WY}$ and $\overline{XZ}$ of a circle are perpendicular. If $XV = 4$, $WV = 3$, and $VZ = 9$, then find $YZ$.
●
AdminMod2
Sep 9, 2017
0
697
2
if u make 60 dollars per 2 minutes how much is it in 1 hour pls help!!
if u make 60 dollars per 2 minutes how much is it in 1 hour pls help!!
●
●
Guest
Sep 9, 2017
0
828
0
How do you sketch a graph of y=-2 sin x for 0≤x≤360?
How do you sketch a graph of y=-2 sin x for 0°≤x≤360°?
I got this as a maths homework question but I have never come across using degrees and sin in plotting question
Guest
Sep 9, 2017
0
3043
1
1/6d+2/3=1/4(d-2)
1/6d+2/3=1/4(d-2)
●
Guest
Sep 9, 2017
0
634
1
Second Mortgage
A second mortgage was taken for $150,000 for a term of 5 years @ 4.5% amortized over a period of 30 years. The current balance of the mortgage is $143,740.37. The balance to maturity is not given. If the mortgage is to be sold @ 4%, then what is the price
read more ..
●
Guest
Sep 9, 2017
0
942
1
curious
●
Guest
Sep 9, 2017
0
943
1
math problem
-nx=-b-hx
x=?
●
Guest
Sep 9, 2017
+1
1577
3
+590
Users
I've looked up some users in this site and it said "This user is banned" or something similar to that. How do users get banned? Is it because they are rude?
off-topic
●
●
●
Gh0sty15
Sep 9, 2017
0
1014
3
index of p when n to power of 5 is divided by n to power of 3
index of p when n to power of 5 is divided by n to power of 3
●
●
●
Guest
Sep 9, 2017
0
892
1
bisection method
2sinx+cosx
●
Guest
Sep 9, 2017
«
latest
9420
9419
..
4974
4973
4972
4971
4970
..
2
1
»
Post New Question
1 Online Users
Top Users
+118667
Melody
moderator
+37144
ElectricPavlov
+33657
Alan
moderator
+14995
asinus
moderator
+9673
MaxWong
+3146
admin
administrator
+2653
LiIIiam0216
+2489
GingerAle
+1894
NotThatSmart
+1809
ABJeIIy
+1767
bader
Sticky Topics
Some guidelines for question askers.
What is Happening 5
Again a number puzzle. Multiply in writing.
Loads of fun printable number and logic puzzles
¤¤¤¤Welcome To Web2.0calc¤¤¤¤
How to display latex properly
Feature Questions 1 - Started 8th May 19
How to upload a picture.
If a question is ticked that does not mean you cannot continue it.
Should you consider anything before you answer a question?
Geometry Thread
PUZZLES
LaTex Coding
/calculator/bsh9ex1zxj
Historical post!
What is happening? Wrap #4
Great Questions to Learn From 2
Great Answers to Learn From
Reference Material
Information for new people.