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
230833 Questions
0
333
1
Counting problem
How many paths are there from C to B, if every step must be up or to the right?
catmg
●
Guest
Jun 14, 2021
0
371
1
Help quadratic
What is the largest value of k such that the equation 6x - x^2 = 4x + k has at least one real solution?
●
Guest
Jun 14, 2021
0
336
1
Inequality
Find all x that satisfy the inequality (2x + 10)(x + 3) < (3x + 9)(x + 5). Express your answer in interval notation.
●
Guest
Jun 14, 2021
0
345
4
help math
If w, x, y, and z are real numbers satisfying
w + x + y = -2
w + x + z = 4
w + y + z = 29 and
read more ..
●
●
●
●
Guest
Jun 14, 2021
0
346
1
Help number theory
Find the last 3 digits of 101^99.
●
Guest
Jun 14, 2021
0
353
1
Somone pls verify ans
Pls Verify ANS
TY
●
Guest
Jun 14, 2021
0
416
2
Spemss
Joe drives for 3 hours and covers 201 miles. In miles per hour, how fast was he driving?
Ninchux
●
●
Guest
Jun 14, 2021
0
579
1
The ratio of adult cats to kittens at a pet care center on Monday was 4:3. There were kittens 24 there that day. Saturday, 34 adult cats we
The ratio of adult cats to kittens at a pet care center on Monday was 4:3. There were kittens 24 there that day. Saturday, 34 adult cats were at the pet care center. What is the difference between the number of adult cats at the pet care center on Saturday
read more ..
Ninchux
●
Guest
Jun 14, 2021
0
360
3
arithmetic series
Find the value of a_2 + a_4 + ... + a_{98} if a_1, a_2, a_3, ... is an arithmetic progression with common difference 1 and a_1 + a_2 + ... + a_{98} = 99.
heureka
●
●
●
Guest
Jun 14, 2021
0
419
2
slope
What is the slope of any line perpendicular to 6x+3y-1=0?
●
●
Guest
Jun 14, 2021
0
340
1
function
The function f(x) has the property that f (x+y) = f(x)+f(y)+xy, for all positive integers x and y. If f(1) = 4, then what is the value of f(8)?
catmg
●
Guest
Jun 14, 2021
+1
409
2
+5
x equal?
what does X equal? -5(X-31)=11.5
●
●
niyirixu
Jun 14, 2021
0
384
1
como resolver essa equação exponencial ?
211000000 = 1000000 * 0,9 ^ t
Como resolver isso?
●
Guest
Jun 14, 2021
0
340
2
Counting question
How many numbers can be expressed as the sum of two or more distinct elements of the set {0,1,2,4,8,16,32,64,128}?
●
●
Guest
Jun 14, 2021
0
328
1
help algebra
Find constants A and B such that $\frac{x + 2}{x^2 - x - 2} = \frac{A}{x - 2} + \frac{B}{x + 1}$ for all x such that $x \neq -1$ and $x \neq 2$. Give your answer as the ordered pair (A,B).
amygdaleon305
●
Guest
Jun 14, 2021
0
390
2
help algebra
For how many real values of x is sqrt(1200 - sqrt(x^2)) an integer?
Bginner
●
●
Guest
Jun 14, 2021
0
252
1
help!
Let J and K be given points along a certain line. There are exactly two other distinct points U and V on this line such that and . Let W be the midpoint of UV. Calculate the ratio WJ/WK.
●
Guest
Jun 14, 2021
+1
436
2
+47
PLS HELP Melody
Find a linear inequality with the following solution set. Each grid line represents one unit.
https://latex.artofproblemsolving.com/a/2/9/a29ab229485ebb0bd55ba84d9b69637ee1b61804.png
read more ..
●
●
bossboy1335
Jun 14, 2021
0
263
1
help proportion
Given that y is inversely proportional to x^2 and x is always positive. If y=27 when x = 6, calculate the value of x when y=8.
●
Guest
Jun 14, 2021
0
248
1
counting
A committee of 4 is to be chosen from a group of students. If the number of students in the group increases by 1, the number of different committees triples. How many students are in the group?
●
Guest
Jun 14, 2021
0
287
1
help probability
Three marbles are randomly selected, without replacement, from a bag containing two red, three blue and four green marbles. What is the probability that one marble of each color is selected? Express your answer as a common fraction.
●
Guest
Jun 14, 2021
+1
489
1
+102
please help, algebra
A number is a palindrome if it reads the same way forwards and backwards. For example, 27872 and 48484 are palindromes, but 28389 and 12541 are not. What is the sum of all of the 5-digit palindromes?
heureka
●
blahblah101
Jun 14, 2021
0
326
1
polynomials
The polynomial f(x) has degree 3 if f(-1)=15, f(0)=0, f(1)=5, f(2)=0, then what are the x-intercepts of the graph of f?
●
Guest
Jun 14, 2021
«
latest
9232
9231
..
7796
7795
7794
7793
7792
..
2
1
»
Post New Question
1 Online Users
Top Users
+128570
CPhill
moderator
+118608
Melody
moderator
+33616
Alan
moderator
+14923
asinus
moderator
+9575
MaxWong
+3144
admin
administrator
+2440
GingerAle
+1791
tomtom
+1679
wiseowl
+1588
bader
+1133
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.