web
2.0
calc
Register
Login
Home
Forum
^{+0}
Widgets
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}
129441 Questions
Questions
Answers
Sort:
Start Date
Start Date
Recently Updated
Most Answers
Most Viewed
Filter:
All
All
Answered
Unanswered
Tags:
All
All
No Off-topic
Off-topic
hide off-topic posts
0
47
0
+463
Some one messaged me this on my website
I dont want to make an accout, i have a question
Right now, all i can do is join this site. Are you planning to ever have something new in the site? I dont see a reason for joining it right now. Please answer my question in web.calc, i sent a question
read more ..
AsadRehman
Dec 30, 2017
0
46
4
+1364
help!
The equation describes the height (in meters) of a ball tossed up in the air at 42 meters per second from a height of 18.9 meters from the ground, as a function of time in seconds. In how many seconds will the ball hit the ground?
●
●
●
●
tertre
Dec 30, 2017
0
49
2
+1364
quads
The quadratic has two imaginary roots. What is the sum of the squares of these roots? Express your answer as a decimal rounded to the nearest hundredth.
●
●
tertre
Dec 30, 2017
0
42
1
+88
digits
Use each of the five digits 2,4,6,7 and 9 only once to form a three-digit integer and a two-digit integer which will be multiplied together. What is the three-digit integer that results in the greatest product?
●
mathtoo
Dec 30, 2017
0
63
2
Composite function question
A)
B)
Help would be very much appreciated!
●
●
Guest
Dec 30, 2017
0
59
2
Helpppp
The "cubic" $x^3+2x^2-11x-12$ has three roots. What is their sum?
●
●
Guest
Dec 30, 2017
0
49
1
+311
helppppp
The sum of the first terms in the infinite geometric sequence is . Find .
●
ant101
Dec 30, 2017
0
51
3
+311
math, help!
On a particular day in Salt Lake, UT, the temperature was given by where is the time in hours past noon. What is the largest value at which the temperature was exactly 77 degrees?
hectictar
●
●
●
ant101
Dec 30, 2017
0
54
2
Help
Each of $n$ cats has $2n$ fleas. If two cats (and their fleas) are removed, and three fleas are removed from each remaining cat, the total number of fleas remaining would be half the original total number of fleas. What is the value of $n$?
●
●
Guest
Dec 30, 2017
0
44
1
Help
Solve for $r$: $\frac{r+9}{r-3} = \frac{r-2}{r+5}$
hectictar
●
Guest
Dec 30, 2017
0
51
1
Help
Find all values of $x$ such that $\dfrac{x}{x+4} = -\dfrac{9}{x+3}$. If you find more than one value, then list your solutions in increasing order, separated by commas.
geno3141
●
Guest
Dec 30, 2017
0
52
1
+1364
roots
Find the roots of the equation:
azsun
●
tertre
Dec 30, 2017
+2
54
1
+64
bob and alice
Bob and Alice each have a bag that contains one ball of each of the colors blue, green, orange, red, and violet. Alice randomly selects one ball from her bag and puts it into Bob's bag. Bob then randomly selects one ball from his bag and puts it into Alice's
read more ..
azsun
●
azsun
Dec 30, 2017
0
54
2
Help
Given that $x = \frac{5}{7}$ is a solution to the equation $56 x^2 + 27 = 89x - 8,$ what is the other value of $x$ that will solve the equation? Express your answer as a common fraction.
●
●
Guest
Dec 30, 2017
Dec 29, 2017
0
44
1
Help Please
What is the largest value of $x$ such that the expression
is not defined?
hectictar
●
Guest
Dec 29, 2017
0
47
2
Help Please
https://latex.artofproblemsolving.com/9/8/8/98894e96aa6b82ba4786614fbac149dcb1e489ff.png
hectictar
●
●
Guest
Dec 29, 2017
+1
41
1
+64
ds eh
Four politicians and three lawyers attend a party. Each politician shakes hands exactly once with everyone, and each lawyer shakes hands exactly once with each politician. How many handshakes take place?
azsun
●
azsun
Dec 29, 2017
0
46
1
Help
w What is twice the nonnegative difference between the solutions of the equation $x^2-7x-4=40$?
hectictar
●
Guest
Dec 29, 2017
0
52
1
+1380
Help.
Help.
●
NotSoSmart
Dec 29, 2017
0
52
4
+311
binomials
If , find . Express your answer as a decimal.
●
●
●
●
ant101
Dec 29, 2017
0
54
2
+311
sum of all
What is the sum of all possible values of such that ?
●
●
ant101
Dec 29, 2017
0
52
1
Help!
If $a$ is the $x$-intercept, $b$ is the $y$-intercept, and $m$ is the slope of the line with equation $\frac{x}4 + \frac{y}{12} = 1$, then what is the value of $a + b + m$?
●
Guest
Dec 29, 2017
0
39
1
Solve for r
https://latex.artofproblemsolving.com/c/b/1/cb111da0c0b3bb7356acf6ba2e82cc76465d96a3.png
●
Guest
Dec 29, 2017
0
54
5
+1364
help please!
How many integers n are there such that the quantity is prime?
●
●
●
●
●
tertre
Dec 29, 2017
+1
39
1
+64
halp!
Define . What value of is the solution to the equation
●
azsun
Dec 29, 2017
10
25
50
100
«
latest
5176
5175
..
5160
5159
5158
5157
5156
..
2
1
»
Post New Question
16 Online Users
Top Users
+91435
Melody
moderator
+80935
CPhill
moderator
+26399
Alan
moderator
+18827
heureka
+17711
geno3141
+11757
rosala
+10771
ElectricPavlov
+8930
Omi67
moderator
+7189
asinus
moderator
+6925
MaxWong
+5908
hectictar
Sticky Topics
Geometry Thread
PUZZLES
LaTex Coding
How to upload a picture
https://www.desmos.com/calculator/bsh9ex1zxj
@ Is PROCRASTINATION a problem for you ?
@@ Interest questions.
@ Site full of printable puzzles.
Historical post!
@ Instructions on uploading pictures
Number Puzzles
What is happening? Wrap #4
Great Questions to Learn From 2
abs() on this calculator
END OF WHATEVER: WRAP #3
End of Day Wrap #2
Site Development
Great Answers to Learn From
Reference Material
Information for new people.
We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.
See details
I accept cookies