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
234676 Questions
0
1
2
+328
Algebra
Evaluate the infinite geometric series
0.4 + 0.036 + 0.0000324 + ...
Express your answer as a fraction with integer numerator and denominator.
●
●
onyuIee
Sep 19, 2024
0
1
3
+328
Algebra
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 ..
●
●
●
onyuIee
Sep 19, 2024
0
1
1
+328
Algebra
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.
●
onyuIee
Sep 19, 2024
0
2
0
+868
Geometry
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=(0,0) B=(1,0) C=(0,1).
(a) Let D, E, F be
read more ..
Rangcr897
Sep 19, 2024
Sep 18, 2024
0
1
1
+92
Geometry
In triangle $ABC$, let the perpendicular bisector of $BC$ intersect $BC$ and $AC$ at $D$ and $E$, respectively. If $BC = 20$ and $\angle C = 15^\circ$, then find the length of $BE$.
●
jaekg
Sep 18, 2024
0
1
1
+92
Geometry
In triangle $ABC$, $\angle ABC = 90^\circ$, and $D$ is on side $\overline{BC}$ such that $\overline{AD}$ bisects $\angle BAC$. If $AB = 4,$ $BC = 3$, and $AC = 5,$ then find the area of $\triangle ADC$. Round your answer to the nearest integer.
●
jaekg
Sep 18, 2024
0
1
0
+92
Geometry
Point D is the midpoint of median AM of triangle ABC. Point E is the midpoint of AB, and point T is the intersection of BD and ME. Find the area of triangle BEC if [ABC] = 14.
jaekg
Sep 18, 2024
0
1
2
+1055
Algebra
Three runners, Dirk, Edith, and Foley all start at the same time for a $24$ km race, and each of them runs at a constant speed. When Dirk finishes the race, Edith is $10$ km behind, and Foley is $15$ km behind. When Edith finishes the race, how far
read more ..
●
●
learnmgcat
Sep 18, 2024
0
1
0
+4
8th grade Algebra
Relationship A has a lesser rate than Relationship B. This table represents Relationship B.
Hours worked2458
Amount paid ($)36.507391.25146
Which equation could represent Relationship A?
read more ..
Lily2011
Sep 18, 2024
0
1
0
+162
Algebra
Determine all of the following for f(x) \cdot g(x), where f(x) = -7x^4-3x^2 + 2 and g(x) = 2x^8 - 3x^7 + 5x^6 + 3x^5 - 11x^4 + 3x^3 - 18x^2 + 17x - 5.
Leading term:
Leading coefficient:
Degree:
read more ..
MeIdHunter
Sep 18, 2024
0
1
0
+162
Algebra
There exists a polynomial f(x) and a constant k such that
(x^2 - 2x - 5) f(x) = x^4 - 2x^3 + kx^2
What is k?
MeIdHunter
Sep 18, 2024
0
1
2
+328
Algebra
What is the coefficient of x in (x^3 + x^2 + x + 1)(x^4 + 3x^3 + 4x^2 + 8x + 7)?
●
●
onyuIee
Sep 18, 2024
+1
1
1
+328
Algebra
What is the coefficient of x^2 in (x^3 + x^2 + x + 1)(x^4 + 3x^3 + 8x + 7x + 1)?
●
onyuIee
Sep 18, 2024
0
2
1
+32
among 3 digit numbers, how many numbers are there with exactly 9 factors? help
among 3 digit numbers, how many numbers are there with exactly 9 factors?
i know 2^8 is an option
●
catswift
Sep 18, 2024
0
1
2
+162
Help meee!
Triangle ABC is rotated completely around side BC, sweeping out a solid in space. Find the volume of the solid.
AB = 5, AC = 5, CB = 5
●
●
MeIdHunter
Sep 18, 2024
0
1
0
+162
Plz help
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 $DE$?
MeIdHunter
Sep 18, 2024
0
1
1
+57
Halp Fast!
Find the smallest positive real number x such that:
●
MeldHunter
Sep 18, 2024
Sep 17, 2024
0
1
0
+772
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 $BD$?
RedDragonl
Sep 17, 2024
0
1
1
+772
Geometry
In triangle $PQR,$ $M$ is the midpoint of $\overline{QR}.$ Find $PM.$
PQ = 5, PR = 8, QR = 11
●
RedDragonl
Sep 17, 2024
0
1
1
+772
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?
●
RedDragonl
Sep 17, 2024
0
1
2
+1055
Geometry
The area of a trapezoid is $80$. The length of one base is $16$ units greater than the other base, and one base of the trapezoid is $12$. Find the length of the median of the trapezoid.
●
●
learnmgcat
Sep 17, 2024
0
1
0
+1055
Geometry
A quadrilateral has angles of $q$, $4q + 17^\circ $, $8q + 21^\circ$, and $15q + 148^\circ $. Find the largest angle of the quadrilateral, in degrees.
learnmgcat
Sep 17, 2024
«
latest
9386
9385
..
2
1
»
Post New Question
2 Online Users
Top Users
+118652
Melody
moderator
+37072
ElectricPavlov
+33653
Alan
moderator
+14983
asinus
moderator
+3146
admin
administrator
+2973
TitaniumRome
+2651
LiIIiam0216
+2489
GingerAle
+1887
tomtom
+1808
NotThatSmart
+1756
bader
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.