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
235741 Questions
0
37
1
+850
help with coordinates
The distance between the points $A$ and $B$ is $\sqrt{34}.$ If $A = (a,4)$ and $B = (-20,33),$ then find the sum of all possible values of $a.$
●
magenta
Mar 23, 2024
+1
28
1
+16
Please Help
Suppose f(3)=4. Name a point that must be on the graph of y=f(x)+4
●
Arhantio
Mar 23, 2024
0
18
2
+16
Please Help
The graph of y=f(x) is a parabola whose vertex is at (1,-2). The graph of y=f(x-3) is also a parabola. Where is the vertex of the graph of y=f(x-3)
Thank you in advance!
hairyberry
●
●
Arhantio
Mar 23, 2024
0
17
0
+479
Polygons
Two regular pentagons and a regular decagon, all with the same side length, can completely surround a point, as shown.
An equilateral triangle, a regular dodecagon, a square, and a regular n-gon, all with the same side length, also
read more ..
ChiIIBill
Mar 23, 2024
0
11
1
+479
Quadrilateral
In the diagram below, each side of convex quadrilateral $ABCD$ is trisected. (For example, $AP = PQ = QB.$) The area of convex quadrilateral $ABCD$ is $180.$ Find the area of the shaded region.
read more ..
●
ChiIIBill
Mar 23, 2024
0
19
1
+2669
Percent
Our badminton team has finished $60\%$ of its season. So far, we have won $40\%$ of the games we played. What percent of the remainder of our games must we win in order to finish the season with the same number of wins as losses?
●
LiIIiam0216
Mar 23, 2024
0
13
1
+2669
Algebra
Fill in the blank with a constant, so that the resulting expression can be factored as the product of two linear expressions:
2mn - 21m + 6n + mn - 9m + ___
hairyberry
●
LiIIiam0216
Mar 23, 2024
0
15
1
+2669
Binomial
Find all real values of $s$ such that $x^2 + sx + 144 - 44$ is the square of a binomial.
●
LiIIiam0216
Mar 23, 2024
0
23
1
+2669
Binomial
For what real values of $c$ is $x^2 - 8x - 14x + c$ the square of a binomial?
●
LiIIiam0216
Mar 23, 2024
0
34
0
+2669
Algebra
Find one ordered pair (x,y) of real numbers such that x + y = 6 and x^3 + y^3 = 162 - (x^2 + y^2).
LiIIiam0216
Mar 23, 2024
-1
22
1
+2669
Algebra
Find all ordered pairs $(x,y)$ of real numbers such that $x + y = 10$ and $x^2 + y^2 = 64 + xy$.
●
LiIIiam0216
Mar 23, 2024
Mar 22, 2024
0
23
0
+2669
Equation
Find all values of x such that \frac{x}{x - 5} = \frac{4}{2x - 4} + \frac{2}{x + 3}.
LiIIiam0216
Mar 22, 2024
0
23
1
+145
Need help
Every month. Andie spent 1/5 of his salary on food and 2/3 of the remaining salary on transport. After spending his salary on food and transport, he gave 50% of the rest of the salary to his parents and saved the rest of the $350 How much did
read more ..
●
sugabreaddoughman
Mar 22, 2024
0
32
1
+1246
Coordinates
A line and a circle intersect at $A$ and $B,$ as shown below. Find the distance between $A$ and $B$.
The circle is x^2 + y^2 = 20.
The line is y = -4.
●
Akhain1
Mar 22, 2024
0
19
1
+1246
Circle
Let $x$ and $y$ be real numbers. If $x$ and $y$ satisfy
x^2 + y^2 = 4x + 2y
then find the largest possible value of $x.$ Give your answer in exact form using radicals, simplified as far as possible.
●
Akhain1
Mar 22, 2024
0
16
1
+1246
Lines
The line $y = mx$ bisects the angle between the two lines shown below. Find $m$.
The two lines are y = x and y = 2x.
●
Akhain1
Mar 22, 2024
0
13
1
+1246
Coordinates
The equation of the line below can be expressed in the form
\frac{x}{a} + \frac{y}{b} = 1.
Find a.
read more ..
●
Akhain1
Mar 22, 2024
0
26
1
+2669
Series
Evaluate the infinite geometric series
0.4 + 0.036 + 0.0000324 + ...
Express your answer as a fraction with integer numerator and denominator.
●
LiIIiam0216
Mar 22, 2024
0
19
1
+1246
Triangle
In triangle $ABC$, let $I$ be the incenter of triangle $ABC$. The line through $I$ parallel to $BC$ intersects $AB$ and $AC$ at $M$ and $N$, respectively. If $AB = 5$, $AC = 5$, and $BC = 8$, then find the area of triangle $AMN$.
●
Akhain1
Mar 22, 2024
0
16
1
+1246
Geometry
Segment $AB$ is $2808$ units long. Point $X$ is the midpoint of segment $AB.$ Point $R$ is $\frac{3}{5}$ of the way from $X$ to $B.$ Point $S$ is $\frac{2}{17}$ of the way from $X$ to $R.$ How many units long is segment $RS \, ?$
●
Akhain1
Mar 22, 2024
0
39
1
+2669
Fractions
Levans writes a positive fraction in which the numerator and denominator are integers, and the numerator is 2 greater than the denominator. He then writes several more fractions. To make each new fraction, he increases both the numerator and the denominator
read more ..
●
LiIIiam0216
Mar 22, 2024
0
34
0
+2669
help quadratic
Find all values of $x$ such that $x^2 - 5x + 4 = -x^2 - 25x - 14$. If you find more than one value, then list your solutions, separated by commas.
LiIIiam0216
Mar 22, 2024
0
9
1
+355
HELP
A median of a triangle is a line segment joining a vertex of a triangle to the midpoint of the opposite side. Let's try this out with a particular triangle. Consider the triangle ABC with A=(5, 4) B=(-9, 6) C=(1, -4).
(a) Let D, E, F be
read more ..
●
Lilliam0216
Mar 22, 2024
«
latest
9428
9427
..
9181
9180
9179
9178
9177
..
2
1
»
Post New Question
3 Online Users
Top Users
+37159
ElectricPavlov
+33659
Alan
moderator
+15001
asinus
moderator
+9673
MaxWong
+2669
LiIIiam0216
+2490
GingerAle
+1897
NotThatSmart
+1839
ABJeIIy
+1768
bader
+1533
parmen
+1455
kittykat
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.