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
236337 Questions
0
19
0
+976
Algebra
Suppose a\neq 0. Compute \log_{8a} b in terms of a and b.
Hi6942O
Aug 23, 2024
0
10
1
+681
Geometry
Quadrilateral $ABCD$ is a parallelogram. Let $E$ be a point on $\overline{AB},$ and let $F$ be the intersection of lines $DE$ and $BC.$ The area of triangle $EBF$ is $5,$ and the area of triangle $EAD$ is $5.$ Find the area of parallelogram
read more ..
●
cooIcooIcooI17
Aug 23, 2024
0
9
1
+1839
Geometry
Let $WXYZ$ be a trapezoid with bases $\overline{XY}$ and $\overline{WZ}$. In this trapezoid, $\angle ZXW = 90^\circ$, $\angle XWZ = 60^\circ$, and $\angle XYZ = 120^\circ$. Find $\angle XZW$, in degrees.
●
ABJeIIy
Aug 23, 2024
0
15
0
+1839
Geometry
Let $P$ be a point inside rectangle $ABCD$. If $AP = 3$, $BP = 3$, and $CP = 3$, then find $DP$.
ABJeIIy
Aug 23, 2024
0
17
0
+2653
Geometry
In triangle $ABC,$ the angle bisector of $\angle BAC$ meets $\overline{BC}$ at $D.$ If $\angle BAC = 60^\circ,$ $\angle CAD = 45^\circ,$ and $AD = 24,$ then find the area of triangle $ABC.$
LiIIiam0216
Aug 23, 2024
0
9
1
+845
Geometry
In triangle $ABC,$ $AB = 15,$ $BC = 9,$ and $AC = 10.$ Find the length of the shortest altitude in this triangle.
●
gnistory
Aug 23, 2024
0
12
1
+823
Geometry
Points $X$, $Y$, and $Z$ are on the sides $\overline{QR}$, $\overline{PR}$, and $\overline{PQ}$, respectively, of right triangle $PQR$ such that $PZXY$ is a square. If $PQ = 6$ and $PR = 6$, then what is the side length of the square?
●
booboo44
Aug 23, 2024
0
10
1
+1379
Geometry
Let $IJKLMN$ be a hexagon with side lengths $IJ = LM = 3,$ $JK = MN = 3,$ and $KL = NI = 3$. Also, all the interior angles of the hexagon are equal. Find the area of hexagon $IJKLMN$.
●
learnmgcat
Aug 23, 2024
+1
9
4
+77
CPhill... I NEED YOU!
Let p(x) be defined on such that
where y is the greatest prime factor of Express the range of p in interval notation.
●
●
●
●
NotLatePY
Aug 23, 2024
Aug 22, 2024
0
7
1
+287
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 $AF = 1$ and $DF = 2$, then what is $BD$?
●
jaekg
Aug 22, 2024
0
11
1
+433
Geometry
Let $ABCD$ be a square with side length $1.$ A laser is located at vertex $A,$ which fires a laser beam at point $X$ on side $\overline{BC},$ such that $BX = \frac{1}{2}.$ The beam reflects off the sides of the square, until it ends up at another
read more ..
●
MeIdHunter
Aug 22, 2024
0
12
1
+433
Geometry
Let A1 A2 A3 ... A15 be a regular polygon. A rotation centered at $A_4$ with an angle of $\alpha$ takes $A_3$ to $A_5$. Given that $\alpha < 180^\circ$, find $\alpha,$ in degrees.
●
MeIdHunter
Aug 22, 2024
0
13
1
+433
Geometry
Point $B$ is the image of point $A$ under a dilation with center $O$. If $OB = 30$, and the scale factor of the dilation is $5$, then what is $OA$?
●
MeIdHunter
Aug 22, 2024
0
11
1
+303
Geometry
The perimeter of a rectangle is $40,$ and the length of one of its diagonals is $10 \sqrt{2}.$ Find the area of the rectangle.
●
bIueb3rry
Aug 22, 2024
0
10
1
+303
Geometry
Find the area of parallelogram ABCD.
●
bIueb3rry
Aug 22, 2024
0
13
1
+303
Geometry
In a rhombus, all the side lengths are $12,$ and one of the angles is equal to $20^\circ.$ Find the area of the rhombus.
●
bIueb3rry
Aug 22, 2024
0
9
1
+681
Geometry
In triangle $PQR,$ $M$ is the midpoint of $\overline{QR}.$ Find $PM.$
PQ = 5, PR = 8, QR = 11
●
cooIcooIcooI17
Aug 22, 2024
0
8
1
+280
C&P
A machine randomly generates one of the nine numbers 1,2,3...8,9 with equal likelihood. What is the probability that when Tsuni uses this machine to generate four numbers their product is divisible by 4. Express your answer
read more ..
●
BRAINBOLT
Aug 22, 2024
0
13
1
+1520
Geometry
In right triangle $ABC,$ $\angle C = 90^\circ$. Median $\overline{AM}$ has a length of 1, and median $\overline{BN}$ has a length of 1. What is the length of the hypotenuse of the triangle?
●
kittykat
Aug 22, 2024
0
17
1
+2653
Algebra
Fill in the blanks with positive integers:
(3 + sqrt(5) - 1 + 2*sqrt(3) + 5)^2 = ___ + ___ *sqrt(5)
●
LiIIiam0216
Aug 22, 2024
0
13
1
+2653
Coefficient
Find the coefficient of y^4 in the expansion of (2y - 5 + y - 6)^4.
●
LiIIiam0216
Aug 22, 2024
«
latest
9452
9451
..
9374
9373
9372
9371
9370
..
2
1
»
Post New Question
2 Online Users
Top Users
+130071
CPhill
moderator
+37157
ElectricPavlov
+15001
asinus
moderator
+3146
admin
administrator
+2539
GingerAle
+2499
Solveit
+1944
NotThatSmart
+1927
tomtom
+1770
bader
+1577
parmen
+1560
blackpanther
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.