web
2.0
calc
Register
Login
Home
Forum
^{+0}
Widgets
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}
129464 Questions
Questions
Answers
Sort:
Start Date
Start Date
Recently Updated
Most Answers
Most Viewed
Filter:
All
All
Answered
Unanswered
Tags:
All
All
No Off-topic
Off-topic
hide off-topic posts
-1
31
1
+618
Simplify. (3x2−2x+2)−(x2+5x−5)
Simplify.
(3x2−2x+2)−(x2+5x−5)
●
AngelRay
Jan 11, 2018
-1
35
1
+618
Simplify. (4x−3+2x2)+(2x+1)
Simplify.
(4x−3+2x2)+(2x+1)
read more ..
●
AngelRay
Jan 11, 2018
-1
34
1
+618
What is the degree of the polynomial −6x3y2+5x4−7z?
What is the degree of the polynomial −6x3y2+5x4−7z?
●
AngelRay
Jan 11, 2018
-1
38
1
+618
Which description is correct for the polynomial 3x4+x+7?
Which description is correct for the polynomial 3x4+x+7?
●
AngelRay
Jan 11, 2018
Jan 10, 2018
-1
36
1
Help!
Select ALL of the order pair solutions to 30 = 10x + 6y - 4x
a. (2,1)
b. (3,2)
read more ..
●
Guest
Jan 10, 2018
0
35
1
+618
Which expressions are polynomials? Select each correct answer.
Which expressions are polynomials?
Select each correct answer.
●
AngelRay
Jan 10, 2018
+1
34
1
+124
Algebra Word Problems
So I'm in algebra class, and I figured out that I'm really stupid at Algebra but smart at Science. Have no idea how that's possible. But please help with this proportion word problem and this other word problem I can't seem to figure out.
read more ..
●
MrPatel
Jan 10, 2018
-1
40
1
+1380
Help.
Help.
●
NotSoSmart
Jan 10, 2018
-1
42
1
+1380
Help.
Help.
●
NotSoSmart
Jan 10, 2018
0
48
3
+403
Hey! Really sorry, but just in case this has slid to the bottom and nobody sees it, I kindof need some urgent help with this:
Hey! Really sorry, but just in case this has slid to the bottom and nobody sees it, I kindof need some urgent help with this:
https://web2.0calc.com/questions/part-a-find-the-sum
read more ..
●
●
●
AnonymousConfusedGuy
Jan 10, 2018
-1
47
2
+111
hope your have a good day
hope you having a good day if not stay strong and determined you can do anything you set your mind to
off-topic
●
●
foxy02
Jan 10, 2018
0
47
1
James threw a ball from the roof of a building.
James threw a ball from the roof of a building. The ball fell 3 feet in the first second, 9 feet in next second, and 27 feet in the third second. Which expression represents the distance the ball fell at the nth second?
A 3n
B
read more ..
●
Guest
Jan 10, 2018
0
53
3
PLEASE HELP!
The final mathematics exam at a certain school contains questions of equal difficulty, and is matched to the students' past performance in mathematics. Four students who take the exam have averages of 25%, 50%, 60% and 80%. What is the probability that
read more ..
●
●
●
Guest
Jan 10, 2018
0
64
3
Please Help
The circle with center O is inscribed in kite ABCD. AB is 24 cm and BC is 18 cm. D is 90 degrees.
Find the length of the radius if the circle, in cm.
hectictar
●
●
●
Guest
Jan 10, 2018
0
36
1
Please Help!
If the height of an equilateral triangle is also a root of the equation y^4-3y^2-270,
then the area of the triangle, in cm^2, is
●
Guest
Jan 10, 2018
+1
35
1
+65
Elimination System of Equations Challenge Problem
It's a story problem so be courteous:
A zookeeper needs to mix a solution for baby penguins so it has the right amount of medicine. Solution A has 20% medicine. Solution B has 4% medicine. How many ounces of each solution are needed
read more ..
ElectricPavlov
●
OwenT154
Jan 10, 2018
0
35
1
+506
Log function?
Which of the following is NOT true of the graph of f(x)=logx?
1) As the value of x increases, the slope of the tangent line will become less steep.
2) The graph has a vertical asymptote
read more ..
ElectricPavlov
●
Julius
Jan 10, 2018
0
31
3
+506
Rate of Change?
The population of a town is increasing at a rate of 1.4% annually. The current population of the town is 2 000. Calculate the average rate of change over the next 10 years.
a) 31.95 people/year
b) 2 298 people/year
read more ..
hectictar
●
●
●
Julius
Jan 10, 2018
0
36
2
+25
Binomial Theorem
If n Cr, denotes the coefficient of xr in the expansion of (1 + x) n, prove that:
n Cr + 2(n Cr+1) + n Cr+2 = n+2 Cr+2
●
●
OldTimer
Jan 10, 2018
0
43
1
+12
Help! Please
The terminal side of θ passes through the point (−3,7).
What is the exact value of sinθ in simplified form?
●
mathretarted
Jan 10, 2018
0
49
1
+12
I need help Algebra 2
A circle has a radius of 63 centimeters.
What is the arc length intercepted by a central angle that measures 2π/9 radians?
Express the answer in terms of π .
hectictar
●
mathretarted
Jan 10, 2018
0
42
3
help please
MathWizard likes to play a fun number trick on her friends. She tells them to think of a number. She then tells them to subtract their number from 2 and multiply the result by 5. To this product she tells them to add half the difference when 24 is subtracted
read more ..
hectictar
●
●
●
Guest
Jan 10, 2018
Jan 9, 2018
+1
36
1
+325
help plz im having some good old trouble with this one.
Ellen baked 2 dozen cupcakes of which half contained chocolate, two-thirds contained raisins, one-fourth contained chocolate chips, and one-sixth contained nuts. What is the largest possible number of cupcakes that had none of these ingredients?
read more ..
●
SmartMathMan
Jan 9, 2018
+1
38
1
Quick question i need help on! PLEASE HELP MEEEEE!
(2x2)-4
TheXSquaredFactor
●
Guest
Jan 9, 2018
10
25
50
100
«
latest
5177
5176
..
5169
5168
5167
5166
5165
..
2
1
»
Post New Question
24 Online Users
Top Users
+91445
Melody
moderator
+80976
CPhill
moderator
+26399
Alan
moderator
+18827
heureka
+17711
geno3141
+11757
rosala
+10796
ElectricPavlov
+8930
Omi67
moderator
+7189
asinus
moderator
+6925
MaxWong
+5924
hectictar
Sticky Topics
Geometry Thread
PUZZLES
LaTex Coding
How to upload a picture
https://www.desmos.com/calculator/bsh9ex1zxj
@ Is PROCRASTINATION a problem for you ?
@@ Interest questions.
@ Site full of printable puzzles.
Historical post!
@ Instructions on uploading pictures
Number Puzzles
What is happening? Wrap #4
Great Questions to Learn From 2
abs() on this calculator
END OF WHATEVER: WRAP #3
End of Day Wrap #2
Site Development
Great Answers to Learn From
Reference Material
Information for new people.
We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.
See details
I accept cookies