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
230604 Questions
0
113
1
help math
When the same constant is added to the numbers 60, 120, and 150 a three-term geometric sequence arises. What is the common ratio of the resulting sequence?
●
Guest
Dec 2, 2022
0
116
1
help probability
A stick is broken at two points, at random. If the length of the stick is 6, then what is the probability that all three resulting pieces are shorter than 3 units?
●
Guest
Dec 2, 2022
0
140
1
counting question
In a sequence of a coin flips, a run is a series of consecutive coin flips that are all the same. For example, in the sequence
the red letters form a run.
If a fair coin is flipped two times, what is the expected length of the longest run?
read more ..
●
Guest
Dec 2, 2022
0
108
1
Coordinates
What are the coordinates of the midpoint of the line segment with endpoints (−4, 2) and (6, −8)?
●
Guest
Dec 2, 2022
0
120
1
geometry help
In triangle PQR, M is the midpoint of PQ. Let X be the point on QR such that PX bisects angle QPR, and let the perpendicular bisector of PQ intersect AX at Y. If PQ = 36, PR = 22, QR = 26, and MY = 8, then find the area
read more ..
●
Guest
Dec 2, 2022
0
101
0
counting
We want to divide 10 dogs (including Fluffy and Nipper) into three groups, one with 3 dogs, one with 5 dogs, and one with 2 dogs. How many ways can we form the groups such that Fluffy is in the 2-dog group and Nipper is in the
read more ..
Guest
Dec 2, 2022
0
104
0
counting
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 color the five squares?
Guest
Dec 2, 2022
0
93
1
Rectangles
Two rectangles overlap, as shown below. Find the area of the overlapping region (which is shaded) if AB = BE = 2 and AD = ED = 4.
read more ..
●
Guest
Dec 2, 2022
0
156
1
Probability question
Two points on a circle of radius 1 are chosen at random. Find the probability that the distance between the two points is at most 1.5.
●
Guest
Dec 2, 2022
0
124
1
help counting
Let n be a positive integer. Let k be a positive integer.
(a) Using a counting argument, show that C(n - 1, k - 1) + C(n - 1, k) = C(n,k).
read more ..
●
Guest
Dec 2, 2022
0
131
1
Factoring question
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
Dec 2, 2022
0
104
0
counting
A certain club has 50 people, and 10 members are running for president. Each club member either votes for one of the 10 candidates, or can abstain from voting. How many different possible vote totals are there?
Guest
Dec 2, 2022
Dec 1, 2022
0
148
1
sale price
Today a suit being sold at a 38% discount . Sale price $341. What was the price yesterday?
●
Guest
Dec 1, 2022
0
120
1
12/24 times 16 and 16/24
12/24 times 16 and 16/24
●
Guest
Dec 1, 2022
0
134
1
Algebra 1
Gabrielle is 15 years younger than Mikhail. The sum of their ages is 61. What is Mikhail's age?
●
Guest
Dec 1, 2022
0
140
1
quadratic
The equation y = -16t^2 + 60t describes the height (in feet) of a projectile launched from the ground at 60 feet per second upward. In how many seconds will the projectile first reach 44 feet in height? Express your answer as a decimal rounded
read more ..
●
Guest
Dec 1, 2022
-1
137
4
+5
Please Help: Polynomial Division
When x^4+6x^3-ax^2-45x-15 is divided by x^2-x-6 the remainder is 3. What is a?
●
●
●
●
qwertyhouse
Dec 1, 2022
0
275
1
triangle
In triangle PQR, M is the midpoint of PQ. Let X be the point on QR such that PX bisects angle QPR, and let the perpendicular bisector of PQ intersect AX at Y. If PQ = 36, PR = 22, QR = 26, and MY = 8, then find the area
read more ..
●
Guest
Dec 1, 2022
0
101
0
Calculate the area between the curves
Calculate the area between the curves y1= x+ 1, y2 = -x² and the lines x=0 and x=3.
Guest
Dec 1, 2022
0
103
0
Solve the integrals below, indicating the technique used. a) ∫xsen(x²)dx b)∫xe^xdx
∫xsen(x²)dx
Guest
Dec 1, 2022
0
101
0
Counting
Find the number of positive integers that satisfy the following conditions:
* Each digit is a 1 or a 2 or a 3
* The sum of the digits is 10
Guest
Dec 1, 2022
0
92
0
Function
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 conditions. Write F(x) as
read more ..
Guest
Dec 1, 2022
0
124
1
help
why did my parents leave
●
Guest
Dec 1, 2022
0
92
0
quadratic
Let r and s be the roots of 3x^2+4x-12=2x^2-6x+8. Find r^2 + s^2
Guest
Dec 1, 2022
«
latest
9223
9222
..
8643
8642
8641
8640
8639
..
2
1
»
Post New Question
3 Online Users
Top Users
+128474
CPhill
moderator
+118609
Melody
moderator
+33615
Alan
moderator
+14915
asinus
moderator
+9519
MaxWong
+3144
admin
administrator
+2440
GingerAle
+1791
tomtom
+1484
bader
+1085
parmen
+1032
kittykat
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.