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
231295 Questions
0
486
1
help
Express as a common fraction the reciprocal of $0.\overline7$.
●
Guest
Aug 16, 2020
0
447
1
please help
John invests $400 at 10.5% compounded annually. About how long will it take for John’s investment to double in value
●
Guest
Aug 16, 2020
0
534
3
Trig Convex Quadrilateral
Convex quadrilateral ABCD has an incircle (that is, there is a circle that is tangent to every side). Let a, b, c, and d be the lengths of the tangents from the vertices to the circle, as shown. Prove that
.
I haven't
read more ..
●
●
●
Guest
Aug 16, 2020
0
303
1
Please Help me
PLease help Me!
Thank you so much!
●
Guest
Aug 16, 2020
0
328
1
HELP ASAPPP
Suppose for that some a,b,c we have a + b + c = 1, ab+ac+bc = abc = -4. What is a^3+b^3+c^3?
●
Guest
Aug 16, 2020
0
591
1
Mathematics Help, Please!
A regular octahedron is made up of eight equilateral triangles, each with side length one unit, as shown below. An ant starts at the top vertex, walks along the edges of the triangles without ever traversing the same edge twice, and ends at the top vertex.
read more ..
●
Guest
Aug 16, 2020
0
300
1
SERIOUS SERIOUS HELPPP ASAPPP
Suppose that for some we have , . What is ?
●
Guest
Aug 16, 2020
0
483
1
Can you please solve this for me
I need answer soon!
●
Guest
Aug 16, 2020
0
641
1
please help
The drama club is selling tickets to its play. An adult ticket costs $15 and a student ticket costs $11. The auditorium will seat 300 ticket-holders. The drama club wants to collect at least $3630 from ticket sales. How many tickets of each kind should
read more ..
●
Guest
Aug 16, 2020
0
327
1
Homework Help
Please Help Me!
●
Guest
Aug 16, 2020
0
454
1
please help
Of the 200 graduate students who were interviewed for a par time position at a call center, 110 had a bicycle, 25 had a master card and 130 had a mobile phone. 50 of them had both, a bicycle and a master card, 30 had both, a master card and a mobile phone
read more ..
●
Guest
Aug 16, 2020
0
536
2
somebody please help
Find the area of the shaded region.
●
●
Guest
Aug 16, 2020
0
368
2
number theory
How many positive integers N from 1 to 5000 satisfy the N is congruent to 11 modulo 27?
●
●
Guest
Aug 16, 2020
0
499
1
Waht, how?
Find all values of x where there is a vertical asymptote for the equation .
●
Guest
Aug 16, 2020
0
500
2
help with algebra
Sort the numbers 2^{55}, 3^{44}, 4^{33} in increasing order.
●
●
Guest
Aug 16, 2020
0
679
1
Ive looked at this problem for a while but i got it wrong...may i please have help?
At the beginning of the first day, Ann has 25 dollars. By the end of the first day, Ann has 2/3 of the money that she had at the beginning of the first day. By the end of the second day, Ann has 4/7 of the money that she had at the end of
read more ..
●
Guest
Aug 16, 2020
0
515
2
counting question
How many different rectangles can be drawn on an 8*8 chess board?
●
●
Guest
Aug 16, 2020
0
352
2
Halp please :D
In the diagram, D and E are the midpoints of AB and BC respectively. Determine the sum of the x and y coordinates of F, the point of intersection of AE and CD.
Image is here: https://latex.artofproblemsolving.com/5/5/0/55002ffdc5d288b4984c4eba461a467dcced7760.png
read more ..
●
●
Guest
Aug 16, 2020
0
385
1
digit problem
Solve (AB)^2 = ACD, where AB is a two-digit number, ACD is a three-digit number, and A, B, C, D are all different digits.
●
Guest
Aug 16, 2020
0
493
2
plz help
In a mixture of 60 litres, the ratio of milk to water is 2:1. If this ratio is to be 1:2,then find the quantity of water to be further added.
●
●
Guest
Aug 16, 2020
0
1081
2
two years ago a woman was 7 times old as her daughter, but in 3 years time she would be 4 times old as the girl. how old are they now
two years ago a woman was 7 times old as her daughter, but in 3 years time she would be 4 times old as the girl. how old are they now
●
●
Guest
Aug 16, 2020
0
623
1
+79
Counting and Probability question!~ :D
Suelyn counts up from 1 to 9, and then immediately counts down again to 1, and then back up to 9, and so on, alternately counting up and down.
Ex. (1,2,3,4,5,6,7,8,9,8,7,6,5,4,3,2,1,2,3,4,5,6,7,8,9,8,7,6,5,4,3,2,1...)
read more ..
●
TheLovely1
Aug 16, 2020
+1
548
2
Parabola and Circle help-I don't know how to rotate parabolas
Six copies of the parabola are arranged in the plane so that each vertex is tangent to a circle, and each parabola is tangent to its two neighbours. Find the radius of the circle.
P.S. the answer is not 5/8. Also, my LaTeX isn't
read more ..
●
●
Guest
Aug 16, 2020
0
417
1
need help with algebra
Plzzz write all the steps
●
Guest
Aug 16, 2020
0
515
1
HELP WITH GRAPHING PROBLEM TY!!!
On the grid below, I draw all the lines with integer y-intercepts and slope 1 or -1. These lines form many intersection points. How many intersection points lie in the interior of the shaded region.
read more ..
●
Guest
Aug 16, 2020
«
latest
9250
9249
..
6941
6940
6939
6938
6937
..
2
1
»
Post New Question
0 Online Users
Top Users
+128731
CPhill
moderator
+118613
Melody
moderator
+33616
Alan
moderator
+14933
asinus
moderator
+9664
MaxWong
+3144
admin
administrator
+2440
GingerAle
+1791
tomtom
+1679
wiseowl
+1610
bader
+1190
parmen
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.