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
237222 Questions
0
597
1
Help with Quadratic Equation
I am in dire need of quadratic equation help. I have read many other websites with information but i just cant figure it out .
The equation is : -3(x-2)2 +3
thank you for your consideration
CPhill
●
Guest
May 25, 2015
0
1153
2
+12
Sigma identity for a permutation? (Combinatorics)
Hi everyone. I'm currently studying basic combinatorics in college and I came across a question I'm having some trouble with:
Part 1: k number of b***s are thrown into 10 boxes - seven green, three red. More than one ball can be placed in each box.
read more ..
difficulty
advanced
●
●
narchitect
May 25, 2015
+9
1233
2
+675
Brain Teaser
An active sphagnum (very dangerous-do avoid) deposits a depth of about one metre of plutonium every one thousand years. Roughly how many millimetres is that per two and a half days?
(NOT including leap-years. Each year is 365 days long.)
<
read more ..
Alan
●
●
thejamesmachine
May 25, 2015
0
677
1
What is the approximate surface area of a cone with a slant height of 4cm and a radius of 3cm?
What is the approximate surface area of a cone with a slant height of 4cm and a radius of 3cm?
CPhill
●
Guest
May 25, 2015
0
1213
1
+1314
i expect this to be done in less than 20000000000000 decades!!! XD
Mary wants to buy one large pizza, one medium pizza, and three drinks. The drinks cost p dollars each, the medium pizza costs two times as much as one drink, and the large pizza costs three times as much as one drink. If Mary started with 30 dollars, how
read more ..
CPhill
●
AWESOMEEE
May 25, 2015
0
1966
1
a surveyor stands 100m from the base of a tower on which an aerial stands he measures the angles of elevation to the top and bottom of aeria
a surveyor stands 100m from the base of a tower on which an aerial stands. He measures the angles of elevation to the top and bottom of aerial as 52 and 49 degrees respectively. Determine the height of the aerial
CPhill
●
Guest
May 25, 2015
0
2725
2
+1314
What is ? Express your answer as a common fraction.
What is
? Express your answer as a common fraction.
CPhill
●
●
AWESOMEEE
May 25, 2015
0
1289
1
1x^2+6x+9
1x^2+6x+9
quadratic formula
Melody
●
Guest
May 25, 2015
-1
2567
6
+1314
What is the product of the numerator and the denominator when is expressed as a fraction in lowest terms?
What is the product of the numerator and the denominator when
is expressed as a fraction in lowest terms?
AWESOMEEE
●
●
●
●
●
●
AWESOMEEE
May 25, 2015
0
569
1
How do I find the sin, cos, and tan of an angle when I only know the measurement of the opposite side?
How do I find the sin, cos, and tan of an angle when I only know the measurement of the opposite side?
CPhill
●
Guest
May 25, 2015
+3
788
1
Is a negative number considered a whole number?
Is a negative number considered a whole number?
AWESOMEEE
●
Guest
May 25, 2015
0
1234
3
(-1)^n+1 x n = 50
(-1)^n+1 x n = 50
Alan
●
●
●
Guest
May 25, 2015
0
5879
4
one lap around a track is equal to one-eighth of a mile. A horse ran a distance of 9 laps in 2 minutes and 30 seconds. what was the horses a
one lap around a track is equal to one-eighth of a mile. A horse ran a distance of 9 laps in 2 minutes and 30 seconds. what was the horses average speed in miles per minute?
CPhill
●
●
●
●
Guest
May 25, 2015
0
1944
2
three-fifths of a number is 210.Find the number.
three-fifths of a number is 210.Find the number.
thejamesmachine
●
●
Guest
May 25, 2015
0
1539
3
What is the best way to factor: 8y^2 +26y +15
What is the best way to factor: 8y^2 +26y +15
zacismyname
●
●
●
Guest
May 25, 2015
0
898
1
how do i solve y = 2(x+2) in straight line graphs
how do i solve y = 2(x+2) in straight line graphs
zacismyname
●
Guest
May 25, 2015
0
561
0
324/360=a/36i
324/360=a/36i
Guest
May 25, 2015
0
713
0
27500*ctg 30=
27500*ctg 30=
Guest
May 25, 2015
0
589
0
marginal cost
10. Suppose the marginal cost is , where x is measured in units of 500 items and the cost is measured in units of $10,000. Find the cost corresponding to the production interval [1,000, 3,000]. Round to the nearest dollar.
Guest
May 25, 2015
+5
4109
3
what times -3 equals 15?
what times -3 equals 15?
●
●
●
Guest
May 25, 2015
«
latest
9487
9486
..
1796
1795
1794
1793
1792
..
2
1
»
Post New Question
1 Online Users
Top Users
+130466
CPhill
moderator
+33654
Alan
moderator
+15054
asinus
moderator
+3146
admin
administrator
+2237
GingerAle
+1946
NotThatSmart
+1776
bader
+1734
blackpanther
+1556
kittykat
+1493
learnmgcat
+1376
Bosco
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.