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
231320 Questions
0
656
1
PLZZ HELP!! i have been stuck on this!
is a regular tetraedron (right pyramid whose faces are all equilateral triangles). If is the Midpoint of , then what is ?
Thank you so much for any and all help !
●
Guest
Mar 21, 2020
0
509
1
please help
Wen has (9x²+24xy+16y²) marbles,where x and y are positive integers.Ha arranges the marbles as a square array. a)Express,in terms of x and y,the number of marbles on each side of the array. b)When x=2 and y=5,find the number of marbles on a side of the
read more ..
●
Guest
Mar 21, 2020
0
405
0
Urgent!!! Please Help!!!!!
A, O and B lie on a straight line segment where a = 24°, b = 40° and c = 31°. State the value of the angles: i) ∠AOB ii) ∠ZOB iii) ∠XOY iv) ∠AOY v) ∠YOZ The diagram is not drawn to scale.
Can someone please help as
read more ..
Guest
Mar 21, 2020
0
470
1
Heelp!
Suppose $f$ is a polynomial such that $f(0) = 47$, $f(1) = 32$, $f(2) = -13$, and $f(3)=16$. What is the sum of the coefficients of $f$?
●
Guest
Mar 21, 2020
0
2716
3
please help
In the diagram below, PQ is tangent at P to the circle with center O, point S is inside the circle, and QS intersects the circle at R. If , QR = RS = 3, OS = 2 and PQ = 6, then find the radius of the circle.
read more ..
●
●
●
Guest
Mar 21, 2020
0
492
1
help
The first term of an arithmetic progression is 8. If the tenth term is double the second term, the common difference is...
●
Guest
Mar 21, 2020
0
482
1
help
the masses of John,Gregory and Ethan are 38 1 out of 5,41 1 out of 3 and 52 1 out of 4.find the total mass of the three children.give your answer as a mixed number in it's simplest form.
●
Guest
Mar 21, 2020
0
330
0
PLS HELP ASAP!!!
Let be the th Fibonacci number, where as usual and Then for some positive integers and Enter the ordered pair
Guest
Mar 21, 2020
+1
540
0
+24
null
null
booksly002
Mar 21, 2020
+1
554
2
+24
null
null
●
●
booksly002
Mar 21, 2020
+1
623
2
+24
null
null
●
●
booksly002
Mar 21, 2020
0
1384
3
help (thanks in advance)
Let f(x)=tan^-1x. Then the domain of f(x) is all real numbers and the range is [-π/2, π/2].
True or False?
●
●
●
Guest
Mar 21, 2020
0
831
2
help
Let f(x)=sin^-1x . Then the domain of f(x) is [-1,1] and the range is all real numbers.
True or False?
●
●
Guest
Mar 21, 2020
0
771
1
help please
The graph of a cosine function shows a reflection over the x-axis, an amplitude of 3, a period of 2, a phase shift of 0.25 to the right, and a vertical shift of 5 units up.
Which is the equation of the midline?
read more ..
●
Guest
Mar 21, 2020
0
387
1
please help asap! thanks
Suppose that and are nonzero real numbers, and that the equation has solutions and . Find the ordered pair
●
Guest
Mar 21, 2020
0
584
1
+981
Help please
What is the coefficient of x^3 when 24x^4 + 6x^3 + 4x^2-7x - 5 is multiplied by 6x^3 + 3x^2 + 3x + 4 and the like terms are combined?
●
qwertyzz
Mar 21, 2020
0
450
1
help please
A group of 100 people touring europe includes 44 people who speak greek, 59 who speak portuguese& 13 who speak neither language. How many people speak both greek and portuguese.
●
Guest
Mar 21, 2020
-1
725
9
+226
help
Find the sum
●
●
●
●
●
●
●
●
●
littlemixfan
Mar 21, 2020
+1
631
1
+537
Geometric Probability
Larry chooses a unit square at random inside a 4x4 square, whose sides are parallel to the 4x4 square. Laura also chooses a unit square at random, whose sides parallel to the 4x4 square. Find the probability that Larry's and Laura's square intersect.
read more ..
●
MathCuber
Mar 21, 2020
-2
812
12
+54
I'm still stuck on this. Someone pls help
An organization has 50 people, and 4 of the people are running for president. Each of the 50 people votes for one of the 4 candidates. How many different vote totals are possible?
●
●
●
●
●
●
●
●
●
●
●
●
MagnusMathematician
Mar 21, 2020
0
413
1
Domains and Functions
Let , and for integers , let
Let be the largest value of for which the domain of is nonempty. For this value of , the domain of consists of a single point
read more ..
●
Guest
Mar 21, 2020
+1
1333
14
+2972
Offtopic: Good Morning
Sup everyone I just wanna wish a good morning to all the wonderful people here!! (or evening). it has been about 3-5 years since i last made a post so yeah i figured why not make one just now. i hope everyone is safe rn at home for quarantine time and that
read more ..
●
●
●
●
●
●
●
●
●
●
●
●
●
●
TitaniumRome
Mar 21, 2020
-1
2368
9
+54
I'm stuck on this question
I have 8 identical pieces of cherry candy and 7 identical pieces of melon candy. Find the number of ways I can distribute this candy to 4 children.
●
●
●
●
●
●
●
●
●
MagnusMathematician
Mar 21, 2020
0
633
4
help
What is the equation of the line that passes through the point (-2,7) and has a slope of -2
●
●
●
●
Guest
Mar 21, 2020
«
latest
9251
9250
..
6402
6401
6400
6399
6398
..
2
1
»
Post New Question
1 Online Users
Top Users
+128731
CPhill
moderator
+118613
Melody
moderator
+33616
Alan
moderator
+14935
asinus
moderator
+9664
MaxWong
+3144
admin
administrator
+2440
GingerAle
+1791
tomtom
+1679
wiseowl
+1612
bader
+1242
LiIIiam0216
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.