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
231714 Questions
0
824
10
help
How many ways can you distribute 10 candies among 5 kids, if each kid must get at least one candy?
●
●
●
●
●
●
●
●
●
●
Guest
Dec 6, 2019
0
792
4
help
What is the coeffiicient of x^2 in (3 + 5x)^7?
●
●
●
●
Guest
Dec 6, 2019
0
620
1
help
An infinite geometric series has common ratio -1/5 and sum 16. What is the first term of the series?
●
Guest
Dec 6, 2019
-1
2920
3
+87
Help with MaTh
1. Find all for which the infinite geometric series
is defined. Enter all possible values of as an interval.
2. Compute
read more ..
●
●
●
Divineology
Dec 6, 2019
0
474
1
help
External squares are drawn on each side of a rhombus, and the centers of these squares are joined to form convex quadadrilateral Q. If the length of each side of the rhombus is 6, and if one of its angles has a degree-measure of 30, find the area
read more ..
●
Guest
Dec 6, 2019
+1
670
2
help
100 more than the sum of n consecutive integers is equal to the sum of the next n consecutive integers. Find n.
●
●
Guest
Dec 6, 2019
0
748
1
help
One of the roots of (x^2 + 1)/x + x/(x^2 + 1) = 29/10 is (1 + sqrt(k))/5, where k is a negative integer. Find k.
●
Guest
Dec 6, 2019
0
400
0
help
In triangle ABC, angle A measures 120 degrees, AB + BC = 21, and AC + BC = 20. Find BC.
Guest
Dec 6, 2019
+1
834
2
help
A sequence goes 101, 10101, 1010101, 101010101, ... How many numbers in this sequence are prime?
●
●
Guest
Dec 6, 2019
+1
673
1
help
We flip a fair coin 2016 times. What is the probability that we get an odd number of heads?
●
Guest
Dec 6, 2019
0
400
0
help
You have two coins that look identical, but one of them is fair and the other is weighted. The weighted coin has a 3/4 chance of flipping heads and a 1/4 chance of flipping tails.
Unfortunately, you've forgotten which coin
read more ..
Guest
Dec 6, 2019
0
443
1
help
Jill's pocket contains 3 quarters, 4 dimes, 2 nickels and 6 pennies. If he takes out a coin at random, what is the probability that the coin is worth more than 5 cents?
ElectricPavlov
●
Guest
Dec 6, 2019
0
387
0
help
Horace turns up at school either late or on time. He is then either shouted at or not. The probability that he turns up late is 0.4. If he turns up late, the probability that he is shouted at is 0.7. If he turns up on time, the probability that
read more ..
Guest
Dec 6, 2019
0
2
1044
2
Please help
It is possible to place positive integers into the vacant twenty-one squares of this 5*5 grid so that the numbers in each row and column form an arithmetic sequence. Find the number that must occupy the vacant square marked by the .
●
●
Guest
Dec 6, 2019
0
632
5
Please help I am stuck on these questions.
1. We say that a quadrilateral is a bow-tie if two of the sides cross each other. An example is shown below.
Seven different points are chosen on
read more ..
●
●
●
●
●
Guest
Dec 6, 2019
0
399
1
help
The graph of x^2/a^2 + y^2/b^2 = 1 has its foci at (0, +/- 4), while the graph of x^2/a^2 - y^2/b^2 =1 has foci at (0, +/- 6). Compute the value |ab|.
●
Guest
Dec 6, 2019
0
1045
3
help
What is the remainder when 301^4 is divided by 10,000?
●
●
●
Guest
Dec 6, 2019
0
1555
1
help
Max picks two different cards without replacement from a standard 52-card deck. What is the probability that the cards are of different suits?
●
Guest
Dec 6, 2019
0
459
1
urgent help
# of yeast cells double every 4 hours how many hours will it take to reach 6billion cells
a. 1.2(log2 0.25)
b. 0.25(log2 1.2)
read more ..
●
Guest
Dec 6, 2019
0
622
1
help
In triange ABC, D is on B so that AD:DB = 1:2, and G is on CD so that CG:GD = 3:2. If BG intersects AC at F, find BG:GF.
●
Guest
Dec 6, 2019
0
694
1
help
A piece of paper in the shape of an equilateral ABC has AB = 8. When A is folded over to any point on BC, a crease of length x is formed which joins some point of AC to some point of AB. As A is moved along BC from B to C, x varies. If
read more ..
●
Guest
Dec 6, 2019
0
382
0
help
Find all integral values of x for which (12(x^2 - 4x + 3))/(x^3 - 3x^2 - x + 3) has a positive integral vaue.
Guest
Dec 6, 2019
0
384
0
What is the point of maximum growth rate for the logistic function f(x) ? Round your answer to the nearest hundredth.
Please help ASAP am I correct or not
Guest
Dec 6, 2019
0
956
1
help
On hypotenuse AB of right triangle ABC, D is the point for which CB = BD. If angle B measures 40 degrees, find the measure of angle ACD.
●
Guest
Dec 6, 2019
«
latest
9267
9266
..
6157
6156
6155
6154
6153
..
2
1
»
Post New Question
2 Online Users
Top Users
+128897
CPhill
moderator
+118623
Melody
moderator
+33616
Alan
moderator
+14952
asinus
moderator
+9664
MaxWong
+3144
admin
administrator
+2440
GingerAle
+1975
saseflower
+1618
bader
+1351
LiIIiam0216
+1211
parmen
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.