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
231246 Questions
0
411
1
coordinates!
An archeologist found the remains of an ancient wheel,which she placed on a grid.If an arc of the wheel passes through A(-8,0),B(-3,4),and C(8,0),locate the center of the wheel,and the standard equation of the circle defining its boundary.
●
Guest
Dec 3, 2020
Dec 2, 2020
0
322
1
V2 - Summative Quiz: Exponentials
As the Algebra 2 teachers are growing a plant, the height is increasing by 16% every week. If the plant started at a height of 4 inches (term 0), how tall is the plant in 5 weeks?
●
Guest
Dec 2, 2020
0
597
1
This graph shows the relationship
This graph shows the linear relationship between the time in seconds, x, for Caroline's walk and the distance in meters, y, Caroline is from her starting point. The graph passes through the point (20,30). According to the graph, how many
read more ..
●
Guest
Dec 2, 2020
0
381
2
algebra 2
In a lab, bacteria is decaying at a rate of 7% each day. The lab started with a population of 40 bacteria before any time passed (term 0). In the equation to model this bacteria growth each day, what number goes in the parentheses y=40( )^x
●
●
Guest
Dec 2, 2020
0
305
0
For how many positive integers n
For how many positive integers n is 4n^2 - 1 a prime number?
Guest
Dec 2, 2020
+1
544
1
+5
Physics
A rocket ship increases its speed from 1230 m/s to 1500 m/s in 5.20 s. The acceleration of the rocket is _____ m/s2.
●
darling
Dec 2, 2020
0
472
1
Physics
A rocket ship increases its speed from 1230 m/s to 1500 m/s in 5.20 s. The acceleration of the rocket is _____ m/s2.
●
Guest
Dec 2, 2020
0
815
1
mountain number
We call a number a mountain number if its middle digit is larger than or equal to any other digit. For example, 284, 551, and 333 are mountain numbers. How many 3-digit mountain numbers are there?
●
Guest
Dec 2, 2020
0
357
1
Some sigma problem
Compute \[\frac{1}{2^3 - 2} + \frac{1}{3^3 - 3} + \frac{1}{4^3 - 4} + \dots + \frac{1}{100^3 - 100}.\]
I suspect the rule to be the start to be 1, the end to be 100 and the rule to be 1/(n^3-n)
●
Guest
Dec 2, 2020
0
464
1
interior region formed by the lines
What is the area, in square units, of the interior region formed by the lines y = 4x - 6, y = -2x + 8, and the y-axis?
●
Guest
Dec 2, 2020
0
290
2
Sigma Infinite Series
Compute \[\sum_{n = 1}^\infty \frac{2n + 1}{n(n + 1)(n + 2)}.\]
read more ..
●
●
Guest
Dec 2, 2020
0
435
1
cone
A circular sheet of paper of radius 6 inches is cut into 4 equal sectors, and each sector is formed into a cone with no overlap. What is the height in inches of the cone?
●
Guest
Dec 2, 2020
+1
406
1
+57
please help
help asap
●
mav002
Dec 2, 2020
0
485
2
even divisors
How many even divisors does 7! + 6! have?
●
●
Guest
Dec 2, 2020
0
321
1
help with number theory
When the greatest common divisor and least common multiple of two integers are multiplied, the product is 180. How many different values could be the sum of the two integers?
●
Guest
Dec 2, 2020
-1
1284
4
+73
Suppose that you deposit $100 into your savings account, which earns 3 percent interest per year.
Suppose that you deposit $100 into your savings account, which earns 3 percent interest per year. Use what you’ve learned about calculating interest to determine how much money you’ll have in your account at the end of one year and the end of six years.
read more ..
●
●
●
●
GAMEMASTERX40
Dec 2, 2020
0
566
1
In a certain sequence of numbers, every entry after the first is the product of its two neighboring entries
In a certain sequence of numbers, every entry after the first is the product of its two neighboring entries (that is, the entries immediately before and after it). If the $100$th entry is $100$ and the $200$th entry is $200$, what is the $300$th entry?
read more ..
●
Guest
Dec 2, 2020
0
1467
1
In the diagram below of triangle EFGEFG, HH is a midpoint of \overline{EF}EF and JJ is a midpoint of \overline{FG}FG.
In the diagram below of triangle EFGEFG, HH is a midpoint of \overline{EF}EF and JJ is a midpoint of \overline{FG}FG. If m\angle JHF=7x+62m∠JHF=7x+62, and m\angle GEH=79-10xm∠GEH=79−10x, what is the measure
read more ..
●
Guest
Dec 2, 2020
+1
488
1
+57
help please
please help me find a and b
●
mav002
Dec 2, 2020
0
300
1
counting question
A Senate committee has 8 Republicans and 6 Democrats. In how many ways can we form a subcommittee of 4 members that has at least one member from each party?
●
Guest
Dec 2, 2020
0
578
1
+468
help please
Many television screens are rectangles that are measured by the length of their diagonals. The ratio of the horizontal length to the height in a standard television screen is 4:3 What is the horizontal length (in inches) of a ``27-inch'' television
read more ..
●
dududsu2
Dec 2, 2020
0
278
1
geo prob
A triangle with integer sides has perimeter 15. How many such non-congruent triangles are there? (A 3-4-5 triangle is considered congruent to a 3-5-4 triangle because we can reflect and rotate the triangles until they match up.)
●
Guest
Dec 2, 2020
0
431
1
geometric series
Consider the geometric series 4 + 20/a + 100/a^2 + .... If the sum is a perfect square, what is the smallest possible value of a where is a positive integer?
●
Guest
Dec 2, 2020
-1
928
7
+14
Hey can I have some help please?
Billy is making compost. To create good compost quickly, the ingredient mixture should have a C:N ratio near 30:1 The table below shows the carbon and nitrogen percentages (by weight) of various common compostables. https://latex.artofproblemsolving.com/3/8/1/381b4ade4680873806d13de887fd09317b088684.png
read more ..
●
●
●
●
●
●
●
cmgamer
Dec 2, 2020
0
399
1
What value of k would have no solutions?
x + y + 3z = 10
-4x + 3y + 5z = 7
kx + z = 3
●
Guest
Dec 2, 2020
«
latest
9248
9247
..
7177
7176
7175
7174
7173
..
2
1
»
Post New Question
1 Online Users
Top Users
+128707
CPhill
moderator
+118613
Melody
moderator
+33616
Alan
moderator
+14931
asinus
moderator
+9664
MaxWong
+3144
admin
administrator
+2440
GingerAle
+1791
tomtom
+1679
wiseowl
+1610
bader
+1190
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.