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
237767 Questions
0
211
0
Find limit by making substitution? help thank you
Find limit by making substitution:
lim (π-x) / sinx , t= π-x
x--->π
read more ..
Guest
Jun 11, 2022
0
210
0
precalc
In triangle BCD, angle C = 90 degrees, CD = 3, and BD = sqrt(14) . What is tan B?
Guest
Jun 11, 2022
0
204
0
Coordinates
The vertices of a triangle are the points of intersection of the line y = -x-5, the line x=2, and y = -1/5x+13/5. Find an equation of the circle passing through all three vertices.
Guest
Jun 11, 2022
0
329
3
What is the largest $n$ such that $a = 2^{306} \cdot 3^{340}$ is a perfect $n$th power?
What is the largest $n$ such that $a = 2^{306} \cdot 3^{340}$ is a perfect $n$th power?
●
●
●
Guest
Jun 11, 2022
0
333
1
x2-90x+8
x2-90x+8
●
Guest
Jun 11, 2022
0
324
2
+239
Radius of Gyration - 2
Answer d^2+ (b^3)/4
Regards and thanks for all your help!
read more ..
●
●
OldTimer
Jun 11, 2022
0
264
0
+6
Graphs & Equations
show each pair is a solution to the equation. Then graph the two pairs to determine another solution
6x-3y=3;(1.1)(-1-3
symon
Jun 11, 2022
0
304
1
counting problem
There are 97 students in South High School. South High School offers only Chinese and Spanish. There are 5 more students in Chinese than in Spanish, and every student takes at least one language. If 48 students take only Spanish, then how many take both
read more ..
●
Guest
Jun 11, 2022
0
329
1
+113
Math
There are some stickers in albums A and B. 50% of the stickers in album A and 20% of the stickers in album B are round stickers. There is an equal number of square stickers in both albums. If there are 51 more round stickers in album A than in album B,
read more ..
●
tacoBRO1023
Jun 11, 2022
0
338
1
+113
Math
Ken has 30% more stamps than Vincent. Tim has 80% the number of stamps Ken has.
(a) What is the ratio of the number of Vincent's stamps to the number of Tim's stamps?
(b) If the total number of stamps of Ken's and Tim's is 150
read more ..
●
tacoBRO1023
Jun 11, 2022
0
262
1
figures
What is the area of this figure?
●
Guest
Jun 11, 2022
0
298
1
Math
Container A and B are identical containers with the same base. Container A is filled to the brim with water while Container B is empty. After 240 cm3 of water is poured into container B from container A, the depth of water in container B is 1/4 the
read more ..
●
Guest
Jun 11, 2022
0
311
2
Math
Andy and Bruce had some money. Andy had 50% more money than Bruce. After Andy gave Bruce $77, Bruce had 25% more money than Andy.
(a) How much money did they have in total?
(b) How much money must Bruce then give to Andy so that Andy
read more ..
●
●
Guest
Jun 11, 2022
Jun 10, 2022
0
318
1
Counting
In how many ways can I choose 4 different officers (President, Vice President, Treasurer, and Secretary) from a club of 8 people?
●
Guest
Jun 10, 2022
0
311
2
Number Theory
How many zeros are at the end of (100!)(200!)(300!)(400!) when multiplied out?
●
●
Guest
Jun 10, 2022
+1
324
2
+24
Algebra 2
Simplify the expression.
(x^2/5)^10
asinus
●
●
Pythonkil06
Jun 10, 2022
+1
319
3
Counting
How many three digit odd numbers can be formed from the digits 1, 2, 3, 4 and 5, if no digits are to be repeated?
●
●
●
Guest
Jun 10, 2022
0
303
1
Asymptotes
If f(x) = (x + 4)/(x^2 + ax + b) and f(x) has two vertical asymptotes at x=1 and x=2, then find the sum of a and b.
●
Guest
Jun 10, 2022
0
320
1
Graphing
The area of the triangle formed by x- and y-intercepts of the parabol y=0.5(x-3.5)(x+k) is equal to 1.5 square units. Find all possible values of k.
●
Guest
Jun 10, 2022
0
300
1
Parabola
Find the equation of the axis of symmetry of the graph of y = (x - 4)^2 - 10.
●
Guest
Jun 10, 2022
0
323
1
triangles
In isosceles right triangle ABC, shown here, AC = BC. Point X is on side BC such that CX = 6 and XB = 12, and Y is on side AB such that XY is perpendicular to AB. What is the ratio of BY to YA?
read more ..
●
Guest
Jun 10, 2022
0
304
1
+58
Math
Jorge has 20 classical songs on his mp3 player. That's 2/3 of his entire collection. How many songs does Jorge have altogether?
●
swagmastercaillou
Jun 10, 2022
0
292
1
Math
Ryan has traveled 5/6 of the distance from Fraction Falls to Vertex Valley. He has 9 more miles to go. How many miles has Ryan traveled so far?
●
Guest
Jun 10, 2022
«
latest
9509
9508
..
8405
8404
8403
8402
8401
..
2
1
»
Post New Question
1 Online Users
Top Users
+130514
CPhill
moderator
+118723
Melody
moderator
+15131
asinus
moderator
+2197
Bosco
+1844
blackpanther
+1580
kittykat
+1309
AnswerscorrectIy
+1024
Hi6942O
+1006
gnistory
+997
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.