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
230453 Questions
0
78
0
Sequence
Help how to do this
Cai writes down the list of positive integers, excluding squares and cubes and all perfect powers. His sequence starts
2, 3, 5, 6, 7, 10, 11, ...
What is the 100th term in Cai's list?
Guest
Jan 25, 2023
0
87
0
Geometry
Plz help I need help quick
In the diagram below, PQRS is a parallelogram with a perimeter of 26 and an area of 28. What is the perimeter of rectangle OSTQ? Include an explanation of how you solved the problem.
read more ..
Guest
Jan 25, 2023
0
83
0
Circles
I need help for this
The two circles below are externally tangent. A common external tangent intersects line PQ at R. Find QR.
Guest
Jan 25, 2023
0
78
0
Geometry
Help with geometry plz
Let AB be a diameter of a circle, and let C be a point on the circle such that AC=8 and BC=4 The angle bisector of ACB intersects the circle at point M Find CM.
Guest
Jan 25, 2023
0
78
0
Function
I don't get this
Let F(x) be the real-valued function defined for all real x except for x = 1 and x = 2 and satisfying the functional equation
F(x) + F((2x - 3)/x) = x.
Find the function F(x) satisfying these
read more ..
Guest
Jan 25, 2023
0
84
0
Binomials
I need help with binomials
Fill in the blanks to make the equation true (Each blank should contain a positive integer.)
read more ..
Guest
Jan 25, 2023
0
73
0
Probability
I can't get the probability
In the SuperLottery, three balls are drawn (at random, without replacement) from white balls numbered from 1 to 12, and one SuperBall is drawn (at random) from red balls numbered from 13 to 20. When you
read more ..
Guest
Jan 25, 2023
0
78
0
Counting
help how I do this
There is a group of five children, where two of the children are twins. How many ways can I distribute 10 identical pieces of candy to the children, if the twins must get an equal amount of candy?
read more ..
Guest
Jan 25, 2023
0
76
0
Counting
Plz help I need
(a) In how many ways can you distribute 4 distinguishable balls among 3 indistinguishable boxes?
read more ..
Guest
Jan 25, 2023
0
83
0
Coloring
In a regular decagon, the sides are to be colored with five different colors, so that sides are diametrically opposite have the same color. (Not all five colors need to be used.) One possible coloring is shown below.
In
read more ..
Guest
Jan 25, 2023
0
69
0
Binomials
Can anyone help with this math
Find the positive integer n such that the expansion of (4x - 7y)^n contains a term of the form cx^2*y.
Guest
Jan 25, 2023
0
82
0
Counting
At a meeting, five scientists, two mathematicians, five journalists, two biologists, and three politicians are to be seated around a circular table. How many different arrangements are possible if the scientists must all sit together (in
read more ..
Guest
Jan 25, 2023
0
97
1
Urgent help is needed; thanks!
The equation describes the height (in feet) of a projectile launched from the surface of Mars at 51 feet per second. In how many seconds will the projectile first reach 108 feet in height?
●
Guest
Jan 25, 2023
0
121
2
Counting
Plz help with this
Four adults and four children are to be seated at a circular table. In how many different ways can they be seated if each child must be next to at least one adult? (Two seatings are considered the same
read more ..
●
●
Guest
Jan 25, 2023
0
117
1
System
Plz help with system question
Find the ordered quintuplet (a,b,c,d,e) that satisfies the system of equations
a + 2b + 3c + 4d + 5e = 41
read more ..
●
Guest
Jan 25, 2023
0
72
0
Distributions
I don't know what to do here
In how many ways can you distribute 10 indistinguishable balls among 8 distinguishable boxes, if at least one of the boxes must be empty?
Guest
Jan 25, 2023
0
68
0
Coefficient
Help how do I find this
Find the coefficient of y^4 in the expansion of (2y - 5 + y^2)^6.
Guest
Jan 25, 2023
0
76
0
Factor
Help hard math
We are looking to factor 23x^2 + kx - 5 + x^2 - 3. Some values of k allow us to factor it as a product of linear binomials with integer coefficients. what are all such values of k?
Guest
Jan 25, 2023
0
80
0
trig
Plz help me with this
Find the 3 smallest positive x-intercepts of the graph of
y = cos 12x + cos 16x + cos 20x
and list them in increasing order.
read more ..
Guest
Jan 25, 2023
0
77
0
Geometry
I have no idea how
Triangle ABC is a right triangle with angle BAC= 90 degrees and angle B > angle . Suppose AP is an altitude of the triangle, AQ is an angle bisector of the triangle, and AR is a median of the triangle,
read more ..
Guest
Jan 25, 2023
0
81
0
slove
2x(x+1.5)=-1
Guest
Jan 25, 2023
0
132
1
Counting
I don't know how
In a row of five squares, each square is to be colored either red, yellow, or blue, so that no two consecutive squares have the same color, and at lest three of the squares are red. How many ways are there to
read more ..
●
Guest
Jan 25, 2023
«
latest
9217
9216
..
8720
8719
8718
8717
8716
..
2
1
»
Post New Question
7 Online Users
Top Users
+128408
CPhill
moderator
+118608
Melody
moderator
+33615
Alan
moderator
+14903
asinus
moderator
+9519
MaxWong
+3144
admin
administrator
+2440
GingerAle
+1763
tomtom
+1453
bader
+1037
parmen
+1030
blackpanther
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.