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
230733 Questions
+1
1193
1
what is (7k-3)(k 2 -2k+7)
what is (7k-3)(k2-2k+7)
●
Guest
Jan 22, 2018
+4
1024
2
+17
HELP
what is 3t+4=12+3t???
●
●
haehae1738
Jan 22, 2018
+4
1078
4
+17
I don't know
I am completly clueless when it comes to math.
off-topic
●
●
●
●
haehae1738
Jan 22, 2018
+1
721
2
+1450
Sorry I Couldn't Type This Out
Thanks :D
●
●
AnonymousConfusedGuy
Jan 22, 2018
+1
948
2
+1450
Not sure where to start here...
A quadrilateral is called a "parallelogram" if both pairs of opposite sides are parallel. Show that if WXYZ is a parallelogram, then < W = < Y and < X = < Z.
(< = angle)
read more ..
●
●
AnonymousConfusedGuy
Jan 22, 2018
+1
1037
2
https://vle.mathswatch.co.uk/vle/assignment/777190/8267
dont know it
●
●
Guest
Jan 22, 2018
+3
866
1
+7
good morning
good morning
●
TANKER15
Jan 22, 2018
+1
787
1
eccentricity
I don't get eccentricity and its relation to hyperbolas...in a question where I have to form an equation for a hyperbola with a center at (-3,1), one focus at (2,1), and eccentricity is 5/4, how would I solve this?
●
Guest
Jan 22, 2018
+1
1080
1
graph 9xy=16
graph 9xy=16 ?
Omi67
●
Guest
Jan 22, 2018
+1
703
1
Linear Programing
Can someone explain how to get the equations from this problem or check if my equations are right:
We have two types of workers tenured and probationary. Our Union contract states that of our 34000 work hours a week at least
read more ..
●
Guest
Jan 22, 2018
+1
1770
1
Help
Suppose $a$ and $x$ satisfy $x^2 + \left(a-\frac{1}{a}\right)x - 1 = 0$. Solve for $x$ in terms of $a$.
●
Guest
Jan 22, 2018
+1
2126
1
Need help with rewriting expressions
Rewrite the expression $6j^2 - 4j + 12$ in the form $c(j + p)^2 + q$, where $c$, $p$, and $q$ are constants. What is $\frac{q}{p}$?
Melody
●
Guest
Jan 22, 2018
+1
2262
1
Help
If $s$ is an integer and the root(s) of the quadratic expression $\frac{1}{2}x^2+sx-\frac{1}{2}$ are integers, find the sum of all possible values of $s$.
●
Guest
Jan 22, 2018
+1
525
1
Simplifying Exponential Fractions
Simplify this expression. Assume that all variables are positive.
X2/3y-1/4
-----
read more ..
●
Guest
Jan 22, 2018
Jan 21, 2018
0
3064
1
The formula 180(n-2) gives the number of degrees
The formula 180(n-2) gives the number of degrees in the angles of a convex polygon because n-2 triangles can be drawn (with no lines crossing) in a polygon with n sides, each triangle containing 180. In how many ways can a convex heptagon be divided
read more ..
●
Guest
Jan 21, 2018
+1
3552
3
+1438
help plz
Dates can be written as month/day/year using integers 1 through 12 for the month, followed by the day of the month, followed by the last two digits of the year. The date 12/ 3/ 45 is an increasing sequence of consecutive digits, while 1/ 22/ 34,
read more ..
●
●
●
SmartMathMan
Jan 21, 2018
+1
727
1
+1438
help
How many integers between 200 and 300 have the sum of their digits equal to 15?
●
SmartMathMan
Jan 21, 2018
0
1866
1
+1438
HELP THIS IS VERY IMPORTANT!
How many integers between 200 and 300 have the sum of their digits equal to 15?
●
SmartMathMan
Jan 21, 2018
+1
1
4636
10
+1438
Help!
The sum of all the digits used to write the whole numbers 10 through 13 is 1+0+1+1+1+2+1+3 = 10. What is the sum of all the digits used to write the whole numbers 1 through 110, inclusive?
●
●
●
●
●
●
●
●
●
●
SmartMathMan
Jan 21, 2018
0
2360
2
PLS HELP NOW PLS DUE TMROW
1) Find the area of a regular 12-gon inscribed in a unit circle.
2) A regular hexagon has side length 6. If the perimeter and area of the hexagon are p and A, respectively, what is the value of (p^4)/(a^2)?
read more ..
●
●
Guest
Jan 21, 2018
-1
3427
2
Help with 2 questions
1. The solutions of $x(x-3)=1$ may be expressed in the form $\frac{a+\sqrt{b}}{c}$ and $\frac{a-\sqrt{b}}{c}$, where $a$, $b$, and $c$ are prime numbers. Find $abc$.
2. The quadratic $4x^2+2x-1$ can be written in the form
read more ..
●
●
Guest
Jan 21, 2018
0
1708
1
18+5x^2=20x
There are two distinct solutions $x$ to the equation $18+5x^2=20x$. If each solution is rounded to the nearest integer, and then these two integers are multiplied together, what is the result?
●
Guest
Jan 21, 2018
0
610
1
Help
If we express $3x^2 + x - 4$ in the form $a(x - h)^2 + k$, then what is $k$?
●
Guest
Jan 21, 2018
«
latest
9228
9227
..
5173
5172
5171
5170
5169
..
2
1
»
Post New Question
7 Online Users
Top Users
+128487
CPhill
moderator
+118609
Melody
moderator
+33616
Alan
moderator
+14921
asinus
moderator
+9519
MaxWong
+3144
admin
administrator
+2440
GingerAle
+1791
tomtom
+1679
wiseowl
+1565
bader
+1117
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.