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
237779 Questions
0
323
2
function
Let f(x) = (x - 1)/(x + 1). Compute f(f(f(5))).
●
●
Guest
Jun 17, 2022
0
336
1
coordinates
What is the perimeter of the polygon formed when the points A(-6,6), B(9,6) and C(9,-1) are graphed and connected with straight lines?
●
Guest
Jun 17, 2022
0
340
6
+349
phel
In this expression, what are the last 2 digits? $\displaystyle \prod_{n=0}^{99} 99^n$
●
●
●
●
●
●
hipie
Jun 17, 2022
0
203
0
Algebra
GetThere Airlines currently charges 200 dollars per ticket and sells 40,000 tickets a week. For every 12 dollars they increase the ticket price, they sell 500 fewer tickets a week. How many dollars should they charge to maximize their total revenue?
read more ..
Guest
Jun 17, 2022
0
302
1
quadratic
Marina solved the quadratic equation 9x^2 - 36x - 720 = 0 by completing the square. In the process, she came up with the equivalent equation
(x + r)^2 = s
where r and s are constants. What is s?
●
Guest
Jun 17, 2022
0
302
1
Inequality
What is the sum of the positive integers that are solutions of -3n + 3 > -100?
●
Guest
Jun 17, 2022
0
326
1
geometry
The medians AD, BE, and CF of triangle ABC intersect at the centroid G. The line through G that is parallel to BC intersects AB and AC at M and N , respectively. If the area of triangle AGM is 144, then find the area of triangle AGN.
●
Guest
Jun 17, 2022
0
304
1
geometry
If the diameter of a right cylindrical can with circular bases is increased by 25%, by what percent should the height be decreased in order to preserve the volume of the original can?
●
Guest
Jun 17, 2022
0
314
1
Parabola
The line x = k intersects the graph of the parabola x = -2y^2 - 3y + 5 - y^2 + 1 at exactly one point. What is k?
●
Guest
Jun 17, 2022
Jun 16, 2022
0
310
2
number theory
What is the largest integer n such that 3^n is a factor of 1 * 3 * 5 * ... * 97 * 99 * 101 * 103 * ... * 197 * 199?
●
●
Guest
Jun 16, 2022
0
332
1
+103
Math
A cereal company puts a 10 cents-off coupon in every other box of cereal it packages. It puts a pencil in every fifth box. It puts a coupon for a free hamburger in every eighth box. Out of the first 100 boxes, how many will have a 10 cents-off coupon,
read more ..
●
Robtlukas
Jun 16, 2022
0
333
1
Probability
a is chosen from the set {1,2,3,4,5}, and b is chosen from the set {5,6,7,8,9}. What is the probability that the product ab is a prime number?
●
Guest
Jun 16, 2022
0
315
1
Counting question
In how many ways can I choose 4 different officers (President, Vice President, Treasurer, and Secretary) from a club of 9 people?
●
Guest
Jun 16, 2022
0
315
1
Fractions
What is the smallest positive n such that n/(2010*7*11) is a terminating decimal?
●
Guest
Jun 16, 2022
0
289
1
help geometry
Quadrilateral PQRS is a trapezoid with bases PQ and RS. The median MN meets the diagonals PQ and RS at X and Y, respectively. If SR=20 and XY=5, find PQ.
read more ..
●
Guest
Jun 16, 2022
0
315
2
question
what is 287 * 326
mworkhard222
●
●
Guest
Jun 16, 2022
+2
309
1
+491
Mod Question
This is from Killersteve's post:
read more ..
●
Elijah
Jun 16, 2022
+2
328
2
+491
Requesting A Link To All Troll Posts
Im Sure one of you all "Veterens" Have a collection of troll posts, I want to be amused by them.
also benn stuggling with this complex equation:
Any pointers?
read more ..
off-topic
●
●
Elijah
Jun 16, 2022
0
223
0
System
Find an ordered pair that solves the system:
2x - 3y = -3.2 - 0.2x
x = 0.6x - y + 8.8
read more ..
Guest
Jun 16, 2022
0
354
1
coordinates
In square units, what is the area of the gray triangle?
read more ..
MaxWong
●
Guest
Jun 16, 2022
0
370
1
geometry
In the diagram, triangle BDF and triangle ECF have the same area. If DB = 2, BA = 4, and AE = 3, find the length of EC.
read more ..
●
Guest
Jun 16, 2022
0
374
4
+580
Vectors
Let's say you got a vector, v = (1, 1)
We also have a point, p, at (2, 1). (This will be the tail of our vectors).
Then you got points X, Y, and Z (unknown points), which will be the head of our vectors.
Lets says that:
read more ..
●
●
●
●
Vinculum
Jun 16, 2022
0
378
2
fractions
Aaron had 3/4 as many badges as Ben. Ben has 2/5 as many badges as Calvin. Aaron has 8 badges fewer than Ben. How many more badges does Calvin have than Ben?
●
●
Guest
Jun 16, 2022
0
265
1
Statistics
The marks obtained by 50 students in a class is as shown below.
Marks 30 40 50 60 70 80 Frequency 3 4 16 14 8 5 Determine
a) The mode
b) Interquartile range
read more ..
●
Guest
Jun 16, 2022
«
latest
9510
9509
..
8415
8414
8413
8412
8411
..
2
1
»
Post New Question
3 Online Users
Top Users
+130516
CPhill
moderator
+118723
Melody
moderator
+15131
asinus
moderator
+2221
Bosco
+1844
blackpanther
+1580
kittykat
+1309
AnswerscorrectIy
+1024
Hi6942O
+1022
gnistory
+1013
magenta
+980
booboo44
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.