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
237779 Questions
Aug 10, 2023
0
87
5
+7
HALP PLSSS
The diagram shows two chords that are parallel. What is the length of the chord that lies halfway between them?
●
●
●
●
●
ImAMathKid
Aug 10, 2023
0
127
2
+12
number theory
Find the sum of those positive integers n such that (n+15)^2 is a multiple of n+2
●
●
saucybaka
Aug 10, 2023
0
117
0
Guest
Aug 10, 2023
0
127
2
triangles
Find the value of x in the diagram.
●
●
Guest
Aug 10, 2023
0
114
1
+1348
help with quadratic equation
Does anybody know how to solve this?
Let $f(x) = x^2 + 6x + c$ for all real numbers $x$, where $c$ is some real number. For what values of $c$ does $f(x) = 0$ have exactly $2$ distinct real roots?
●
sandwich
Aug 10, 2023
+2
97
1
+15
help with interest rates!!
An investment of $24,000 is made in a government bond that will pay 1% bi-monthly interest (meaning that the investment will increase by 1% every two months). At the end of five years, what is the total number of dollars in this investment?
history
●
linghan
Aug 10, 2023
0
84
1
+1348
circles
Let \[x^2+y^2=ax+by+c\] be the equation for the circle, contained entirely in the first quadrant, which has radius $1$ and passes through the points $(1,2)$ and $(2, 1).$ Find $a+b+c.$
●
sandwich
Aug 10, 2023
0
103
1
+1348
graphing question
The domain of the function $y = f(x)$ is the set $\{x_1,x_2,x_3\}$, so that the graph of $y=f(x)$ consists of just three points. Suppose those three points form a triangle of area $32$. The graph of $y = f(x) + 2$ also consists of just three points.
read more ..
●
sandwich
Aug 10, 2023
0
59
1
PLZ HALPS!!!!!1111
Let $P$ be a regular nonagon with side length $2,$ and let $S$ be the set of points that are within a distance of $1$ from $P.$ (That is, a point $X$ is in $S$ if there exists a point $Y$ in $P$ such that $XY \le 1.$) What is the perimeter of $S?$
Apparently,
read more ..
●
Guest
Aug 10, 2023
-2
55
5
+818
A quadratic equation
Help plz!
The equation $18+5x^2=20x + 20$ has two distinct solutions. If each solution is rounded to the nearest integer, and then these two integers are multiplied together, what is the result?
●
●
●
●
●
maximum
Aug 10, 2023
-2
91
1
+818
A special quadratic
Which quadratic is this?
Let $p(x) = x^2 + ax + b,$ where $a$ and $b$ are real numbers. Find the number of ordered pairs $(a,b)$ such that $p(a) = p(b) = 1.$
●
maximum
Aug 10, 2023
0
92
10
+132
PLEASE HELP!
consider the matrix.
c= [-3 5]
-2 4
What is the value of |C| ?
read more ..
●
●
●
●
●
●
●
●
●
●
thebestchesscat
Aug 10, 2023
-2
99
2
+818
ordering numbers
Arrange the following numbers in increasing order (smallest first, biggest last)
A = 2^(1/2)*4^(1/6)
B = (128)^(1/12)/64^(1/3)
C = (8^(1/5))^(2^2)
read more ..
●
●
maximum
Aug 10, 2023
-2
117
1
+818
help plz
I need help with a function problem:
Find the range of the function $f(x) = \sqrt{x + 5} + \sqrt{20 + x}.$
●
maximum
Aug 10, 2023
0
101
1
help me with geometry
Three squares each have sides of length $6$ units and overlap each other as shown below. The points where the sides cross are midpoints. Find the area of the gray figure in square units.
read more ..
●
Guest
Aug 10, 2023
0
94
4
+4
CPhill or Melody I need help!!!!!
Let ABC be a triangle, and let its angle bisectors be AD, BE, and CF, which intersect at I. If DI = 3, BD = 4, and BI = 5, then compute the area of triangle ABC. Can CPhill or Melody please answer this question with a diagram and preferably no law of sines,
read more ..
●
●
●
●
aksbha023
Aug 10, 2023
0
126
1
Domain
Find the domain of the function
\[f(x) = \sqrt{1 - \sqrt{2 - \sqrt{3 - \sqrt{4 - x}}}}.\]
●
Guest
Aug 10, 2023
0
57
4
+660
Pls help with Challenge Problem!
How many sets of four consecutive positive integers are there such that the product of the four integers is less than ?
Hint: Make sure you have a systematic way of keeping track of the items in your list.
Hint: The smallest set is [1, 2,
read more ..
●
●
●
●
Keihaku
Aug 10, 2023
0
66
1
+4
I NEED HELP
Can someone help me with this one plz. A bee flies at 9 feet per second directly to a flowerbed from its hive. The bee stays at the flowerbed for 16 minutes, and then flies directly back to the hive at 6 feet per second. It is away from the hive for a
read more ..
ElectricPavlov
●
Helpmewithis6657
Aug 10, 2023
0
102
1
angle bisector
In triangle $ABC$, the side lengths are $AB = BC = 5$ and $AC = 6.$ If $AD$ is an angle bisector such that $D$ is on $BC,$ then find the value of $AD^2.$ Express your answer as a common fraction.
●
Guest
Aug 10, 2023
0
121
1
help me I check all answers of this and they are incorrect pls asap
●
Guest
Aug 10, 2023
«
latest
9510
9509
..
8985
8984
8983
8982
8981
..
2
1
»
Post New Question
1 Online Users
Top Users
+130514
CPhill
moderator
+118723
Melody
moderator
+15131
asinus
moderator
+2219
Bosco
+1844
blackpanther
+1580
kittykat
+1309
AnswerscorrectIy
+1024
Hi6942O
+1022
gnistory
+1013
magenta
+980
booboo44
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.