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
237686 Questions
0
2422
2
Confused
The number $x$ satisfies $5x^2 + 4 = 3x + 9$. Find the value of $(10x - 3)^2$.
●
●
Guest
Jun 25, 2019
0
1405
1
Help
If we express $-2x^2 + 4x + 5$ in the form $a(x - h)^2 + k$, then what is $k$?
hectictar
●
Guest
Jun 25, 2019
0
1755
1
Help
The solutions to $4x^2 + 3 = 3x - 9$ can be written in the form $x = a \pm b i,$ where $a$ and $b$ are real numbers. What is $a + b^2$? Express your answer as a fraction.
●
Guest
Jun 25, 2019
0
817
2
Double Trouble 2.0
1. How many ways are there to put 6 balls in 3 boxes if the balls are not distinguishable and neither are the boxes?
2. How many ways are there to put 6 balls in 3 boxes if the balls are not distinguishable but the boxes are?
read more ..
●
●
Guest
Jun 25, 2019
0
1206
1
PLEASE HELP!!!
If $x = 1 + \frac{x}{1 + \frac{x}{1+ \frac{x}{1 + \cdots}}}$, then what is $x$?
Pushy
●
Guest
Jun 25, 2019
0
918
2
+189
help
Find the number of pairs of integers (x,y) with 0 \(\frac{1}{1-\frac{10}{x}} > 1 - \frac{5}{y}\)
hectictar
●
●
Mathgenius
Jun 25, 2019
0
1007
1
+189
Which positive real number x has the property that x, , and form a geometric progression (in that order)?
Which positive real number x has the property that x, , and form a geometric progression (in that order)?
●
Mathgenius
Jun 25, 2019
-1
956
2
+189
help
If
find
●
●
Mathgenius
Jun 25, 2019
0
895
1
+189
help thx
Find all real numbers x that satisfy the equation
If you find more than one such value of x list all of your solutions separated by commas. If you only find one solution, then just enter that solution.
read more ..
●
Mathgenius
Jun 25, 2019
0
999
2
y=sqrt(3-sqrt(x)) y'=?
y=sqrt(3-sqrt(x)) y'=?
hectictar
●
●
Guest
Jun 25, 2019
0
807
4
+1713
halppp
Find the sum of all the integer values of m that makes the following equation true: .
●
●
●
●
tommarvoloriddle
Jun 25, 2019
0
1577
7
+1713
HELP 2 PROBLEMS BOTH ARE IMPOSSIBLEEE
3) With a headwind, a plane traveled 840 miles northward in 2 hours. With the same wind as a tail wind, the return trip took 1 hour and 45 mineutes. Find the plane's airspeed and the wind speed.
for 3), I attempted this problem
read more ..
●
●
●
●
●
●
●
tommarvoloriddle
Jun 25, 2019
0
982
7
+33
Hi I had a question for u on the form
652314557445522288521/655852155255+441527514-^31524452=?
I tried the calculator I kept getting mixed in the words and some symbols I have no clue Please help me!
●
●
●
●
●
●
●
Cubeman
Jun 25, 2019
0
841
1
Explain pls
Convert to a fraction in simplest form.
thxxxxx
update, I got it!
read more ..
●
Guest
Jun 25, 2019
0
1
818
1
some guy said there was more moves in the 17x17 board game of Go, than atoms in the ENTIRE UNIVERSE.
I heard this idiot on the internet say the total number of atoms in the universe was 10⁸⁰, and I thought that was stupid of him to say because, although I'm not a scientist, neither is he, and even if he was I highly doubt any scientist can conclusively
read more ..
●
Guest
Jun 25, 2019
0
1702
15
two questions
1. Which positive real number x has the property that x, and form a geometric progression (in that order)? (Recall that means the greatest integer less than or equal to x.)
2. Let Find N.
read more ..
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
Guest
Jun 25, 2019
+1
996
3
+95
Halpplz
The graph of $y = ax^2 + bx + c$ has a maximum value of 54, and passes through the points $(-2,0)$ and $(4,0).$ Find $a + b + c.$
●
●
●
Pushy
Jun 25, 2019
0
773
1
Repost of Question
The graph of y=h(x) is shown in red below. Compute h(h(7)).
(Assume grid lines are spaced 1 unit apart.)
read more ..
●
Guest
Jun 25, 2019
Jun 24, 2019
0
1269
4
help
Let $z=-8+15i$ and $w=6-8i.$ Compute \[\dfrac{z\overline z}{w\overline w},\]where the bar represents the complex conjugate.
●
●
●
●
Guest
Jun 24, 2019
0
743
1
Stuck
How many ways are there to put 5 balls in 2 boxes if the balls are distinguishable and the boxes are distinguishable?
●
Guest
Jun 24, 2019
«
latest
9506
9505
..
5981
5980
5979
5978
5977
..
2
1
»
Post New Question
0 Online Users
Top Users
+130548
CPhill
moderator
+37185
ElectricPavlov
+33666
Alan
moderator
+15134
asinus
moderator
+3146
admin
administrator
+2272
Bosco
+1955
NotThatSmart
+1808
blackpanther
+850
cooIcooIcooI17
+448
HiylinLink
+267
CInsbstnkng
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.