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
234773 Questions
Jan 24, 2021
0
272
0
confused
It is given that the area of square ABCD is $6 + 3 \sqrt{3}$. Find the area of square MNPQ.
Guest
Jan 24, 2021
0
474
1
+256
Counting
Prove that in any set of 150 integers, you can find 13 of them so that the difference of any
two is a multiple of 12.
●
BWStar
Jan 24, 2021
0
372
1
prime factorization
Davey Q. decides to factor the number 758 into primes. After doing so, he makes a list from this factorization, including each prime in the list as many times as it appears in the factorization. What is the mode of his list?
●
Guest
Jan 24, 2021
+1
756
6
+70
I actually have 3 questions if that is ok XD
A new planet in orbit about the Sun has a semi-major axis of 1.68 AU and an eccentricity of 0.0938. What is the perihelion distance of the new planet in AU?
If we discover a new planet in our solar system with a period of 14900.0 years, how far
read more ..
●
●
●
●
●
●
Skatergoat
Jan 24, 2021
0
451
1
algebra q
If a + b = 8, b + c = 3, and a + c = 5, what is the value of the product abc?
BWStar
●
Guest
Jan 24, 2021
0
410
1
HELP
At the AoPS office, mice vary inversely with cats, that is, $\text{mice}=\frac{k}{\text{cats}}$, for some value of $k$. When there are $3r-19$ cats, there are $2r+1$ mice, and when there are $6r-24$ mice, there are $r-3$ cats. Find $k$.
●
Guest
Jan 24, 2021
0
309
1
can u help
$AB$ is parallel to $CD$ and $AB =2CD$.
If $m\angle ABC = 45^o $ and $m\angle CBD = 15^o,$ find $m\angle BAD$ in degrees.
read more ..
●
Guest
Jan 24, 2021
0
418
0
In triangle $ABC$, $\angle A = 30^\circ$ and $\angle B = 60^\circ$. Point $X$ is on side $\overline{AC}$ such that line segment $\overline{B
My question is the title
Guest
Jan 24, 2021
0
384
1
need to find angles
All the blue lines in the diagram are parallel to the base of the triangle. Find the sum of the measures of the colored angles.
read more ..
●
Guest
Jan 24, 2021
0
444
1
what adds up to -9 and mutiplies to 18.
what adds up to -9 and mutiplies to 18.
●
Guest
Jan 24, 2021
0
481
2
volume of cone
A sector with radius 10 and central angle $45^\circ$ is to be made into a right circular cone. Find the volume of the cone.
●
●
Guest
Jan 24, 2021
0
397
1
help plz
Define #N by the formula #(N) = 5N + 1. Calculate #(#(#(50))).
●
Guest
Jan 24, 2021
+1
459
1
factoring
Find the product of all constants t such that the quadratic x^2 + tx - 15 can be factored in the form (x + a)(x + b), where a and b are integers.
●
Guest
Jan 24, 2021
0
329
1
HELP
list of 7 intigers whose average is 6, whose range is 7, whose median is 8, and whose only mode is 9
●
Guest
Jan 24, 2021
0
398
1
Help please
Let $r$ and $s$ be the roots of $x^2 - 6x + 2 = 0.$ Find $(r - s)^2.$
●
Guest
Jan 24, 2021
0
331
1
geometric proof
In square $ABDE$, $\triangle CDE$ is isosceles with $\angle CED = \angle CDE = 15^\circ$. Find the measure of $\angle ACB$ in degrees.
I think the answer is 60, but how do I prove it?
read more ..
●
Guest
Jan 24, 2021
0
516
2
+96
HELPPPP
If
then for how many values of x is f(f(x)) = 5?
●
●
kanisan
Jan 24, 2021
0
288
0
quadratic roots
The roots of x^2 + x - 3 = 0 are p and q. Calculate 4p^2 - q^3.
Guest
Jan 24, 2021
0
414
2
Help
The quadratic equation $2x^2 + bx + 18 = 0$ has a double root. Find all possible values of $b.$
●
●
Guest
Jan 24, 2021
0
409
1
angles
What is the sum of the red angles inside the polygon in degrees?
●
Guest
Jan 24, 2021
0
431
1
+68
help asap tysm
Marvin the fly starts at $(0,0).$ Each step, Marvin moves one unit right or one unit up. He is trying to get to the point $(5,7)$. However, at $(4,3)$ there is a frog that will eat him if he goes through that point. In how many ways can Marvin reach $(5,7)$?
read more ..
●
piano123
Jan 24, 2021
0
536
2
operation
If a*b = 2a + b, for all a and b, then what is the value of 4*3?
●
●
Guest
Jan 24, 2021
+1
547
1
proportion and similarity
Segments $\overline{CD}$ and $\overline{AB}$ are parallel. If $CD=2,AB=5,$ and $[CDP]=4,$ find $[ABCD].$
●
Guest
Jan 24, 2021
+1
598
1
+308
help?
If CE:EA:AD:DB=2:3:4:5, then what is [ACD]/[ABE]?
●
notsmart2.0
Jan 24, 2021
«
latest
9389
9388
..
7299
7298
7297
7296
7295
..
2
1
»
Post New Question
4 Online Users
Top Users
+118651
Melody
moderator
+37084
ElectricPavlov
+33653
Alan
moderator
+14985
asinus
moderator
+5265
rarinstraw1195
+3146
admin
administrator
+2973
TitaniumRome
+2651
LiIIiam0216
+2489
GingerAle
+1887
tomtom
+1832
NotThatSmart
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.