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}
231597 Questions
0
6
1
+952
need help help
Five times a number is divided by $2$ more than that number. If the result is $6,$ then what was the original number?
●
ABJeIIy
Apr 4, 2024
Apr 3, 2024
0
9
3
+952
help I have no idea
If I give my brother $5$ dollars, then we will have the same amount of money. If instead he gives me $10$ dollars, then I'll have twice as much money as he will have. How much money does my brother currently have (in dollars)?
●
●
●
ABJeIIy
Apr 3, 2024
0
3
2
+952
need help
Pearl writes down seven consecutive integers, and adds them up. The sum of the integers is equal to $7$ times the largest of the seven integers. What is the smallest integer that Pearl wrote down?
●
●
ABJeIIy
Apr 3, 2024
0
6
0
+952
help help
Let x and y be nonnegative real numbers. If xy = \frac{2}{5}, then find the minimum value of 6x^2 + \frac{3}{5}y^2 - 2x + 8y.
ABJeIIy
Apr 3, 2024
0
9
1
+952
help with algebra now
Let
f(x) = \frac{(2x + 3)(x - 7)}{\sqrt{x}}
Find the domain of f(x). Give your answer using interval notation.
●
ABJeIIy
Apr 3, 2024
0
7
1
+1351
Domain
Find the domain of the function f(x)=\sqrt{1-\sqrt{2+\sqrt{3+\sqrt{x}}}}.
●
LiIIiam0216
Apr 3, 2024
0
4
0
+1351
Equation
Find all real numbers x such that (3x - 27)^3 + (27x - 3)^3 = (3x + 27x - 30)^3.
LiIIiam0216
Apr 3, 2024
0
9
1
+1351
Quadratic
Find the minimum value of the expression $x^2+y^2+2x-4y+8+10x-12y$ for real $x$ and $y$.
●
LiIIiam0216
Apr 3, 2024
0
3
0
+1351
Algebra
Find all values of $x$ which do not satisfy $$1 \le 4-3x+5x < 10-8x.$$ Express your answer in interval notation.
LiIIiam0216
Apr 3, 2024
0
6
3
+190
whats the height?
A box has a certain length, width, and height. The length of the box is equal to twice its width, as well as equal to 5 less than its height. If the total surface area of the box is 234, then what is the height of the box?
●
●
●
Lilliam0216
Apr 3, 2024
+1
5
1
+952
help plz help
Find the vertex of the graph of the equation $x - y^2 + 8y = 13 + 2y + y^2 - 7y - 14$.
●
ABJeIIy
Apr 3, 2024
0
9
1
+952
I need help with this
Find the vertex of the graph of the equation y = -2x^2 + 8x + 15 - 3x^2 + 7x - 25
●
ABJeIIy
Apr 3, 2024
0
9
0
+952
help me help
Find the area of the region enclosed by the graph of $x^2 + y^2 = 2x - 6y + 6 + 14x - 16y + 80$.
ABJeIIy
Apr 3, 2024
0
9
0
+952
help with algebra
The graph of $y = ax^2 + bx + c$ has an axis of symmetry of $x = -1.$ If $a = 2,$ then find $b.$
ABJeIIy
Apr 3, 2024
0
10
0
+952
help help
Fill in the blanks with numbers to make a true equation
3x^2 + 12x + 4 - x^3 + 8x - 5x + 7x^2 + 11 = __ (x + __)^3 + __(x + __)^2 + __x + ___
ABJeIIy
Apr 3, 2024
0
11
1
+18
Urgent-Help!
What is (sqrt of 10)/(4th sqrt of 10) equals 10 raised to what power?
●
Umeko1.0
Apr 3, 2024
0
8
1
+952
help with algebra
Solve the inequality $(x - 2)(x + 6) \le x^2 + 14.$ Write your answer in interval notation.
●
ABJeIIy
Apr 3, 2024
0
4
1
+952
need help
Find the number of integers $n$ that satisfy $n^2 < 64 - 20n - n^2.$
●
ABJeIIy
Apr 3, 2024
0
8
1
+952
help plz help
Write the values of $x$ that satisfy $-8 \le x + 17 < -3 - 5x$ as an interval.
●
ABJeIIy
Apr 3, 2024
Apr 2, 2024
0
10
1
+952
need help
Let
\[f(x) = \frac{2x + 3}{x^2 + 7}.\]
Find the range of $f$. Give your answer using interval notation.
●
ABJeIIy
Apr 2, 2024
0
11
1
+952
help me help
In a geometric sequence, the $23$rd term is $16$ and the $26$th term is $18$. What is the $24$th term?
●
ABJeIIy
Apr 2, 2024
0
3
1
+952
help algebra
In a geometric sequence, the $23$rd term is $16$ and the $24$th term is $24$. What is the $28$th term?
●
ABJeIIy
Apr 2, 2024
0
10
2
+952
i need help
Find the sum of all positive integers less than $1000$ ending in $3$ or $4$ or $5$.
CPhill
●
●
ABJeIIy
Apr 2, 2024
0
9
1
+952
help help
A geometric sequence has $400$ terms. The first term is $500$ and the common ratio is $-\frac{11}{12}.$ How many terms of this sequence are greater than $1?$
●
ABJeIIy
Apr 2, 2024
«
latest
9262
9261
..
9200
9199
9198
9197
9196
..
2
1
»
Post New Question
2 Online Users
Top Users
+128796
CPhill
moderator
+118617
Melody
moderator
+33616
Alan
moderator
+14944
asinus
moderator
+9664
MaxWong
+3144
admin
administrator
+2440
GingerAle
+1679
wiseowl
+1616
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.