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
237677 Questions
0
525
2
Help me please 20 minutes!
Two circles of radius 1 are centered at and . How many circles are tangent to both of the given circles and also pass through the point ?
●
●
Guest
Jul 2, 2020
0
694
2
Permutations
In how many permutations of the word "ROLLER" can the 4 letters "LLRR" be together? And in how many permutations can the letters "ROR" be together? Thanks for help.
●
●
Guest
Jul 2, 2020
0
1205
1
+174
Help please
The proper divisors of 12 are 1, 2, 3, 4 and 6. A proper divisor of an integer N is a positive divisor of N that is less than N. What is the sum of the proper divisors of the sum of the proper divisors of 284?
●
Forumofweb2.0cal
Jul 2, 2020
0
428
0
help
The perpendicular bisector of the line segment connecting the points (-3,8) and (-5,-1) has an equation of the form y = mx + b. Find m + b.
Guest
Jul 2, 2020
0
542
1
help asap
I need some help on this problem
In SHORT BINGO, a $5\times5$ card is filled by marking the middle square as WILD and placing 24 other numbers in the remaining 24 squares. Specifically, a card is made by placing 5 numbers from the
read more ..
●
Guest
Jul 2, 2020
0
443
1
help
Let a and b be the roots of x^2 - 4x + 7 = 0. Find a^2 + b^2.
●
Guest
Jul 2, 2020
0
443
1
help
3 tables and 7 chairs cost $376. 8 tables and 2 chairs cost $486. What is the sum of the costs of each table and chair?
read more ..
●
Guest
Jul 2, 2020
0
593
2
+25
im kinda stuck
Find a linear inequality with the following solution set. Each grid line represents one unit.
(Give your answer in
read more ..
●
●
rapiscool
Jul 2, 2020
-2
639
2
+107
need help plz
The perpendicular bisector of the line segment connecting the points (-3,8) and (-5,4) has an equation of the form y=mx+b. Find m+b.
Note: The perpendicular bisector of the line segment is the line that passes through the midpoint
read more ..
●
●
xplosions
Jul 2, 2020
0
763
3
+93
quick question
Find the value of B-A if the graph of Ax + By = 3 passes through the point (-7,2) and is parallel to the graph of x + 3y = -5.
●
●
●
stuckonmyproblem
Jul 2, 2020
0
1205
1
+212
Find the equation whose graph is shown below. Write your answer in standard form. (Standard form is , where is positive,
Find the equation whose graph is shown below. Write your answer in standard form.
(Standard form is , where is positive, and , , and are integers with greatest common divisor 1.)
read more ..
●
Filliqq
Jul 2, 2020
0
474
1
ecuacion
(tan(π/3)-6sec(π/6)+cot(π/2)+10)
●
Guest
Jul 2, 2020
+1
542
1
+171
help plz due soon
Suppose that f(x) and g(x) are functions on such that the range of f is [-5,3], and the range of g is [-2,1]. The range of f(x) * g(x) is [a, b]. What is the largest possible value of b?
●
BillyBobJoeJr
Jul 2, 2020
+1
573
2
algebra
Compute 1^2/(1.3) + 2^2/(3.5) + 3^2/(5.7) + 4^2/(7.9) +.....+ 500^2/(999.1001).
●
●
Guest
Jul 2, 2020
+3
777
5
+659
...so what is Highschool like and how to survive.
I am an incoming freshman and due to the covid outbreak, school may be hard to adjust to.
I know a lot of you who have been through highschool/ still in highschool did not experience the pandemic previously. Despite that, I need advice.
read more ..
off-topic
●
●
●
●
●
AnExtremelyLongName
Jul 2, 2020
+1
690
1
help
A number is called purple if it can be expressed in the form for positive integers a > b. Find the sum of all purple numbers.
I'm not sure how to do this.
●
Guest
Jul 2, 2020
+1
537
1
help with geometry
In the following image we have two poles with heights of 80 cm and 50 cm. They are 180 cm apart each other and we have a light bulb hanging from the ceiling between them. The post with height 80 cm casts a shadow of 60 cm on the ground. The post with 50
read more ..
●
Guest
Jul 2, 2020
+1
608
1
can you help?
The list A is the list of all positive integers from 1 to 1000. We create a list B by changing all the multiples of 3 from the list A by its successors. Then we create the list C by changing
read more ..
●
Guest
Jul 2, 2020
+1
911
3
HELP ASAP!!
I need help really fast I don't know how to even start!
There is a screenshot of the question embedded in this forum post.
●
●
●
Guest
Jul 2, 2020
+1
617
1
Squares
If each side of a square were increased by seven feet the area would be 315 square feet larger. What is the length of a side of the square
●
Guest
Jul 2, 2020
«
latest
9506
9505
..
6812
6811
6810
6809
6808
..
2
1
»
Post New Question
0 Online Users
Top Users
+130544
CPhill
moderator
+33665
Alan
moderator
+15129
asinus
moderator
+2258
Bosco
+1808
blackpanther
+850
cooIcooIcooI17
+762
history
+448
HiylinLink
+267
CInsbstnkng
+114
ikleyn
+113
thatgirlaj
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.