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
236075 Questions
0
19
0
+948
Geometry
In triangle $ABC,$ let the angle bisectors be $\overline{BY}$ and $\overline{CZ}$. Given $AB = 12$, $AY = 12$, and $AC = 12$, find $BC$.
Rangcr897
Jun 7, 2024
0
14
0
+948
Geometry
In triangle $ABC,$ let the angle bisectors be $\overline{BY}$ and $\overline{CZ}$. Given $AB = 12$, $AY = 12$, and $AC = 12$, find $BZ$.
Rangcr897
Jun 7, 2024
0
16
1
+948
Geometry
Triangle ABC is rotated completely around side BC, sweeping out a solid in space. Find the volume of the solid.
AB = 8, AC = 12, CB = 8
●
Rangcr897
Jun 7, 2024
0
22
1
+948
Geometry
In quadrilateral $BCED$, sides $\overline{BD}$ and $\overline{CE}$ are extended past $B$ and $C$, respectively, to meet at point $A$. If $BD = 8$, $BC = 3$, $CE = 1$, $AC = 19$ and $AB = 13$, then what is $DE$?
●
Rangcr897
Jun 7, 2024
0
15
1
+842
geometry
Trapezoid $HGFE$ is inscribed in a circle, with $\overline{EF} \parallel \overline{GH}$. If arc $GH$ is $66$ degrees, arc $EH$ is $x^2 + 8x$ degrees, and arc $FG$ is $25 + 16x$ degrees, where $x > 0,$ find arc $EPF$, in degrees.
●
RedDragonl
Jun 7, 2024
0
15
1
+743
Geometry
Points $L$ and $M$ lie on a circle $\omega_1$ centered at $O$. The circle $\omega_2$ passing through points $O,$ $L,$ and $M$ is drawn. If the measure of arc $LM$ in circle $\omega_1$ is $90^\circ,$ and the radius of $\omega_1$ is 1, then find
read more ..
●
bingboy
Jun 7, 2024
0
13
1
+743
Geometry
In the diagram below, SR = PQ = 20 and RT:TS = 2:5. Find UV.
●
bingboy
Jun 7, 2024
Jun 6, 2024
0
24
1
+743
Geometry
In triangle $PQR,$ $M$ is the midpoint of $\overline{QR}.$ Find $PM.$
●
bingboy
Jun 6, 2024
0
18
1
+743
Geometry
Trapezoid $ABCD$ is inscribed in the semicircle with diameter $\overline{AB}$, as shown below. Find the radius of the semicircle. Find the area of ABCD.
PQDC is a square.
read more ..
NotThatSmart
●
bingboy
Jun 6, 2024
0
11
1
+667
Graph
Find the area of the region enclosed by the graph of x^2+y^2=2x-6y+16+14x-4y+20
NotThatSmart
●
siIviajendeukie
Jun 6, 2024
0
17
1
+667
Graphing
The graph of $y = ax^2 + bx + c$ has an axis of symmetry of $x = 2.$ If $(4,7)$ lies on the graph, find another point on the graph.
●
siIviajendeukie
Jun 6, 2024
+2
14
0
+1938
Web3.0calc Part 2
Here's Part 1 if you haven't seen it yet
https://web2.0calc.com/questions/challenge-question-good-luck
Alright! Time for part 2
Take the answer you got from part 1.
read more ..
NotThatSmart
Jun 6, 2024
0
7
2
+667
Graphing
The parabola $y = ax^2 + bx + c$ is graphed below. Find $a \cdot b \cdot c.$ (The grid lines are one unit apart.)
read more ..
●
●
siIviajendeukie
Jun 6, 2024
-1
10
1
+667
Coordinates
Find the coordinates of the center of the circle.
●
siIviajendeukie
Jun 6, 2024
+1
20
1
+28
HELP
Let $A$, $B$, and $C$ be constants so that \[\frac{1}{x^3-x^2-21x+45}=\frac{A}{x+5}+\frac{B}{x-3} + \frac{C}{(x - 3)^2}\]holds for all real numbers $x$ other than $-5$ and $3.$ What is $A$?
●
wassyo
Jun 6, 2024
+1
10
1
+28
HELP
Suppose $f(x)$ is a function defined for all real $x$, and suppose $f$ is invertible (that is, $f^{-1}(x)$ exists for all $x$ in the range of $f$). If the graphs of $y=f(x^2)$ and $y=f(x^4)$ are drawn, at how many points do they intersect?
●
wassyo
Jun 6, 2024
+1
8
3
+23
How do you find the maximum value of inequalities?
Let $f(a) = \frac{13+a}{3a+7}$ where $a$ is restricted to positive integers. What is the maximum value of $f(a)$?
I gave up on this problem. The solution said you can write the function as:
\[f(a) = \frac{\frac13 (3a+7)}{3a+7}
read more ..
●
●
●
Coolmonkey
Jun 6, 2024
+1
20
1
+23
Help!! I got an answer for this problem, but I don't understand it. Inequality
Let $x$ be a real number such that $x^2 + 7x + 12 \le 0.$ Find the largest possible value of $x^2 + 5x + 6.$
I gave up on this problem. The solution stated that once you factor the quadratic in the function (x+4)(x+3) and, you get -4<=
read more ..
●
Coolmonkey
Jun 6, 2024
0
11
1
+667
Algebra
For an integer n, the inequality
x^2 + nx + 15 < -89 - 3x^2
has no real solutions in $x$. Find the number of different possible values of $n$.
●
siIviajendeukie
Jun 6, 2024
0
33
0
+667
Geometry
Point $P$ is on side $\overline{AC}$ of triangle $ABC$ such that $\angle APB =\angle PBA$, and $\angle ABC - \angle ACB = 24^\circ$. Find $\angle PBC$ in degrees.
siIviajendeukie
Jun 6, 2024
0
14
1
+667
Algebra
Let a and b be real numbers such that a^3 + 3ab^2 = 679 and 3a^3 - ab^2 = 615. Find a - b.
●
siIviajendeukie
Jun 6, 2024
0
16
1
+948
Geometry
In triangle $ABC$, points $D$ and $F$ are on $\overline{AB},$ and $E$ is on $\overline{AC}$ such that $\overline{DE}\parallel \overline{BC}$ and $\overline{EF}\parallel \overline{CD}$. If $CE =3$ and $DF = 3$, then what is $BD$?
●
Rangcr897
Jun 6, 2024
0
11
1
+842
Geometry
In triangle $PQR,$ $M$ is the midpoint of $\overline{QR}.$ Find $PM.$
●
RedDragonl
Jun 6, 2024
0
17
0
+842
Geometry
Point $D$ is the midpoint of median $\overline{AM}$ of triangle $ABC$. Point $E$ is the midpoint of $\overline{AB}$, and point $T$ is the intersection of $\overline{BD}$ and $\overline{ME}$. Find the area of triangle $BET$ if $AB = 20$, $AC = 20$,
read more ..
RedDragonl
Jun 6, 2024
0
6
1
+842
Geometry
A rectangle contains a strip of width $1,$ as shown below. Find the area of the strip.
●
RedDragonl
Jun 6, 2024
«
latest
9442
9441
..
9277
9276
9275
9274
9273
..
2
1
»
Post New Question
1 Online Users
Top Users
+129899
CPhill
moderator
+37153
ElectricPavlov
+15000
asinus
moderator
+2511
GingerAle
+2499
Solveit
+1938
NotThatSmart
+1557
parmen
+1520
blackpanther
+1457
kittykat
+1310
learnmgcat
+1279
Bosco
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.