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
236111 Questions
0
50
1
+12
help
Two points on a circle of radius 1 are chosen at random. Find the probability that the distance between the two points is at most 1.
●
Ironwolfyyy
Sep 30, 2023
-2
65
1
+816
need help
In a row of five squares, each square is to be colored either red, yellow, or blue, so that no two consecutive squares have the same color. How many ways are there to color the five squares, so that at least one square is yellow, and at least one square
read more ..
●
maximum
Sep 30, 2023
-2
68
0
+816
help with counting
In the Olympic women's skating competition, the gold medal goes to first place, silver to second, and bronze to third. If there are 19 skaters, including 2 Americans and 5 Canadians, in how many ways can the medals be awarded to three of the 19 skaters
read more ..
maximum
Sep 30, 2023
-2
68
1
+816
palindromes
A palindrome is a number that is the same when read forwards and backwards, such as 43234. Find the number of 4-digit palindromes that are divisible by 8.
●
maximum
Sep 30, 2023
Sep 29, 2023
-1
75
0
+743
Complex Numbers
I need help with complex
Solve for $z$ in the following equation: $2-3iz = 3 + 2z$.
bingboy
Sep 29, 2023
-1
68
0
+743
Quadratic equation
Let $p(x) = x^2 + ax + b,$ where $a$ and $b$ are real numbers. Find the number of ordered pairs $(a,b)$ such that $p(a) = p(b) = 1.$
bingboy
Sep 29, 2023
-1
74
0
+743
help with geometry
Help I don't understand.
Each of the circles $P$ and $Q$ is tangent to rectangle $ABCD$ at three points, as shown. Each circle has a radius of $10$ cm. $RS = 7$ cm. What is the number of square centimeters in the area of rectangle $ABCD$?
read more ..
bingboy
Sep 29, 2023
-1
63
1
+743
inequality
Find all $x$ that satisfy the inequality $(2x+10)(x+3)<(3x+1)(x+6)$. Express your answer in interval notation.
●
bingboy
Sep 29, 2023
0
17
4
+8
help
A stick is broken at two points, chosen at random. If the length of the stick is 6 units, then what is the probability that all three resulting pieces are shorter than 5 units?
●
●
●
●
apples1ices
Sep 29, 2023
-1
68
0
+743
quadrilateral
Help I don't get it
In the diagram, the four points have coordinates $A(0,1)$, $B(1,3)$, $C(5,2)$, and $D(4.5,0)$. What is the area of quadrilateral $ABCD$?
read more ..
bingboy
Sep 29, 2023
-1
67
0
+743
help plz
I need help with this
Determine the coordinates of the point $P$ on the line $y=-x+6$ such that $P$ is equidistant from the points $A(10,-12)$ and $O(2,8)$ (that is, so that $PA=PO$). Express your answer as an ordered pair $(a,b)$.
read more ..
bingboy
Sep 29, 2023
-1
68
1
+1348
geometry
A circular table is pushed into the corner of a square room so that a point $P$ on the edge of the table is $4''$ from one wall and $5''$ from the other wall as shown. Find the radius of the table in inches.
read more ..
●
sandwich
Sep 29, 2023
-1
42
3
+1348
help with counting
In how many ways can 4 balls be placed in 8 boxes if the balls are indistinguishable, and the boxes are distinguishable?
●
●
●
sandwich
Sep 29, 2023
Sep 28, 2023
+3
77
2
+67
For how many integers n where 2≤n≤100 is (n 2) odd?
For how many integers n where 2≤n≤100 is (n 2) odd?
●
●
USERSPPB
Sep 28, 2023
Sep 27, 2023
-3
21
1
+758
Can we have a bot that checks if the question is from a different website, whether or not it has already been answered, ect
Can we have a bot that checks if the question is from a different website, whether or not it has already been answered, and if it is chatGPT generated.
off-topic
●
history
Sep 27, 2023
0
20
3
+758
Riddle 47
A horse is tied to a five-meter rope in front of an old saloon. Six meters behind the horse is a bale of hay. Without breaking his rope, the horse is able to eat the hay whenever he chooses. How is this possible?
●
●
●
history
Sep 27, 2023
+1
35
8
+660
These questions were never answered and I'm stuck! Please Help!
https://web2.0calc.com/questions/binomial-help-needed
https://web2.0calc.com/questions/need-counting-help-asap
https://web2.0calc.com/questions/counting_31933
https://web2.0calc.com/questions/3-part-question-please-help-cphill-melody-or-ep
read more ..
●
●
●
●
●
●
●
●
Keihaku
Sep 27, 2023
Sep 26, 2023
-1
59
1
+1348
help plz
Rationalize the denominator of $\displaystyle \frac{1}{2 - \sqrt[3]{2}}$. With your answer in the form $\displaystyle \frac{\sqrt[3]{A} + \sqrt[3]{B} + \sqrt[3]{C}}{D}$, and the fraction in lowest terms, what is $A + B + C + D$?
●
sandwich
Sep 26, 2023
-1
61
1
+1348
circles
Two quarter-circles are drawn inside a unit square, as shown. A circle is drawn that is tangent to the quarter-circles, and a side of the square. Find the radius of the circle.
read more ..
●
sandwich
Sep 26, 2023
0
61
1
+20
Hi pls help
A group of friends shared some chocolates among themselves. They tried taking 10 chocolates each, but found that the last person had only 2 chocolates. When each person took 8 chocolates, there were 20 left over. How many friends shared the chocolates?
(1)
read more ..
●
DSUDLER4251
Sep 26, 2023
-1
34
9
+758
Math Geometry
a. Pythagorean Theorem:
b. 3 of the smallest Pythagorean Triples:
c. What are SSS, SAS, and AA Similarities:
d. What is a HL similarity:
read more ..
●
●
●
●
●
●
●
●
●
history
Sep 26, 2023
0
43
1
+16
Help
140 people were at a soccer match. 80 of them bought the tickets at normal price but the rest bought the ticket at a 20% discount. If the total sale amount of the tickets were $1920, what is the normal price of a ticket?
●
kendrickotiswalker10
Sep 26, 2023
0
21
2
+15
Please Help!!!
We introduced i as a square root of -1. Does i itself have any square roots among the complex numbers? If so, name one. If not, answer with "None."
Please Help!
Thanks
●
●
NotACalculator123
Sep 26, 2023
«
latest
9443
9442
..
9021
9020
9019
9018
9017
..
2
1
»
Post New Question
2 Online Users
Top Users
+129907
CPhill
moderator
+37155
ElectricPavlov
+15000
asinus
moderator
+3146
admin
administrator
+2511
GingerAle
+2499
Solveit
+1938
NotThatSmart
+1557
parmen
+1520
blackpanther
+1489
kittykat
+1337
learnmgcat
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.