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
237665 Questions
0
408
1
Expected Value Help
Three different numbers are chosen at random from the set {1,2,3,...10}. Find the expected value of the largest number.
●
Guest
May 16, 2020
0
545
1
can anyone help?
A book’s pages are numbered with integers 1 through n. When the book is open to the exact middle, the product of the two page numbers showing is 1980. What is the value of n, assuming that all pages of the book are numbered?
●
Guest
May 16, 2020
0
826
1
help please
What is the measure, in degrees, of the acute angle formed by the hour hand the minute hand of a 12-hour clock at 6:48?
●
Guest
May 16, 2020
0
386
1
help
Find the value of K in the equation: (7)(6)(6!)(5!) = K!.
●
Guest
May 16, 2020
0
636
4
halp
In how many ways can I distribute 6 identical gummy bears and 6 identical chocolates to 4 students, if each student must receive at least 1 of each type of candy?
●
●
●
●
Guest
May 16, 2020
0
512
1
Please help!
1. How many cubic polynomials f(x) are there such that f(x) has nonnegative integer coefficients and f(1) = 9?
2. How many ordered quadruples (a,b,c,d) satisfy, a + b + c + d = 18,
where a,b,c,d are integers such
read more ..
●
Guest
May 16, 2020
0
571
2
help
What is the sum of the digits of the first 50 positive odd integers?
●
●
Guest
May 16, 2020
0
755
1
+1072
Help Please!!!
Let a, b, c, and d be real numbers such that a > b and c > d. Enter the letters of the statements below that must be true.
(A) a + c > b + d
read more ..
●
SpongeBobRules24
May 16, 2020
0
540
1
probability
Point (x,y) is randomly picked from the rectangular region with vertices at (0,0), (10,0), (10,11), (0,11). What is the probability that x > 2y?
●
Guest
May 16, 2020
+1
982
1
+1072
Help Please!!!
Find the number of ordered pairs (x, y) of real numbers such that
●
SpongeBobRules24
May 16, 2020
-1
368
0
bloodstain equation
how do i find the angle of impact of a bloodstain with the equation..
Guest
May 16, 2020
0
2416
1
angles
The degree measure of the sum of the interior angles of a convex polygon with n sides is 1800. What is the degree measure of the sum of the interior angles of a convex polygon with n + 2 sides?
●
Guest
May 16, 2020
0
613
1
help!
An 8-by-8 square is divided into 64 unit squares and each unit square is painted one of four possible colors. The ratio of the numbers of squares of each color is 1:2:3:x. How many integer values could x have?
●
Guest
May 16, 2020
0
1081
1
+1072
Help Please!!!
Find the number of positive integers n that satisfy
●
SpongeBobRules24
May 16, 2020
0
572
1
please help
What is the value of x + y + z when 6x + 5y − 2z = −4 and 4x + 5y + 12z = 54?
●
Guest
May 16, 2020
0
866
1
Lance has a regular heptagon (7-sided figure). How many distinct ways can he label the vertices of the heptagon with the letters in OCTAGON
Lance has a regular heptagon (7-sided figure). How many distinct ways can he label the vertices of the heptagon with the letters in OCTAGON if the N cannot be next to an O? Rotations of the same labeling are considered equivalent.
●
Guest
May 16, 2020
0
571
1
counting
How many subsets of {1, 2, 3, 4, 5, 6, 7, 8} contain 1, 2, or 5?
●
Guest
May 16, 2020
0
1342
1
help please
GetThere Airlines currently charges 200 dollars per ticket and sells 40,000 tickets a week. For every 10 dollars they increase the ticket price, they sell 800 fewer tickets a week. How many dollars should they charge to maximize their total revenue?
read more ..
●
Guest
May 16, 2020
0
489
1
please help
What is the minimum possible value for y in the equation y = x^2 - 6x + 13?
●
Guest
May 16, 2020
-1
625
1
what is 4 fiths divided by 3 fourths
4 fiths divided by 3 fourths
●
Guest
May 16, 2020
0
868
2
help
If 15 bahs are equal in value to 24 rahs and 9 rahs are equal in value to 15 yahs, how many bahs are equal in value to 1000 yahs?
●
●
Guest
May 16, 2020
0
408
2
HELP ASAP ! ! !
In parallelogram WXYZ, WX=6cm and XY=8cm. Angle W=45 degrees. What is the area of the parallelogram?
●
●
Guest
May 16, 2020
0
421
1
geometry
If p is the measure of an interior angle of a regular pentagon and d is the measure of an interior angle of a regular decagon, what is the value of p/d?
●
Guest
May 16, 2020
0
523
2
please help
At an average speed of 530 miles per hour, how many hours will it take a plane to travel 1325 miles? Express your answer as a decimal to the nearest tenth
●
●
Guest
May 16, 2020
0
459
2
help pls
The units digit of a perfect square is 6. What are the possible values of the tens digit?
●
●
Guest
May 16, 2020
«
latest
9505
9504
..
6649
6648
6647
6646
6645
..
2
1
»
Post New Question
1 Online Users
Top Users
+130536
CPhill
moderator
+33665
Alan
moderator
+15127
asinus
moderator
+2234
Bosco
+1808
blackpanther
+850
cooIcooIcooI17
+762
history
+448
HiylinLink
+267
CInsbstnkng
+114
ikleyn
+113
thatgirlaj
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.