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
33
1
+1768
help me
help me with geometry
●
bader
Jan 9, 2024
0
31
1
+1768
plz help
plz help
●
bader
Jan 9, 2024
0
29
1
+1768
need help with angles
Help me here
●
bader
Jan 9, 2024
+1
35
2
+290
Question
A rectangular garden has a length that is twice its width. The dimensions are increased so that the perimeter is doubled and the new shape is a square with an area of 3600 square feet. What was the area of the original garden, in square feet?
●
●
DS2011
Jan 9, 2024
+1
62
0
+1911
need help with system
Find the ordered triple $(p,q,r)$ that satisfies the following system:
p - 2q &= 3 - 4p + 7q, \\
q - 2r &= -2 - 5q, \\
p + r &= 9 + 10q.
tomtom
Jan 9, 2024
+1
34
1
+1911
help plz
In Linguistics $101,$ the ratio of the number of juniors to the number of seniors is $3:2$. When twelve more juniors join the class, and one senior drops the class, the ratio of the number of juniors to the number of seniors becomes $2:1$. How
read more ..
●
tomtom
Jan 9, 2024
0
33
1
+1678
Algebra
All members of our painting team paint at the same rate. If $45$ members can paint a specific wall in $60$ minutes, then how long would it take $12$ members to paint the same wall, in minutes?
DS2011
●
wiseowl
Jan 9, 2024
0
40
1
+1678
Algebra
All members of our painting team paint at the same rate. If $40$ members can paint a $100$ square foot wall in $50$ minutes, then how long would it take the $40$ members to paint a $480$ square foot wall, in minutes?
DS2011
●
wiseowl
Jan 9, 2024
0
31
1
+1678
Algebra
All members of our painting team paint at the same rate. If $50$ members can paint a $3600$ square foot wall in $20$ minutes, then how long would it take for $25$ members to paint a $4000$ square foot wall, in minutes?
DS2011
●
wiseowl
Jan 9, 2024
0
33
1
+1678
Proportion
In physics, Ohm's law says that current through a wire, $I$, is directly proportional to voltage, $V$, and inversely proportional to resistance, $R$:
I = V/R
It's also true that resistance is directly proportional to the length of the wire.
read more ..
●
wiseowl
Jan 9, 2024
0
24
1
+1678
Rates
A plane flies from Penthaven to Jackson and then back to Penthaven. When there is no wind, the round trip takes $3$ hours and $20$ minutes, but when there is a wind blowing from Penthaven to Jackson at $70$ miles per hour, the trip takes $3$ hours
read more ..
ElectricPavlov
●
wiseowl
Jan 9, 2024
0
29
2
+1557
Algebra
Let $x \mathbin{\spadesuit} y = \frac{x^2}{y}$ for all $x$ and $y$ such that $y\neq 0$. Find all values of $a$ such that $a \mathbin{\spadesuit} (a + 1) = 9$. Write your answer as a list separated by commas.
●
●
parmen
Jan 9, 2024
0
41
1
+1557
Functions
Suppose $a(x) = 2x + 5 - 3x^2 + x^3$ and $b(x) = 4 - x^2 + 4x^4$. Find $(a\circ b)(3) - (b\circ a)(3).$
●
parmen
Jan 9, 2024
0
29
1
+1557
Inverse Function
Let
\[f(x) = \frac{2x + 5}{x - 4} + \frac{x^2 + 1}{4x - 3}.\]
Find the inverse $f^{-1}(x)$.
●
parmen
Jan 9, 2024
0
35
1
+1557
Functions
Let $f(x) = 3x - 8 + 4x^2$ and $g(x) = 15x + c - 3x^2$. Find $c$ if $(f \circ g)(x) = (g \circ f)(x)$ for all $x$.
●
parmen
Jan 9, 2024
+1
27
2
+157
Binomial Theorem
For some real number and some positive integer the first few terms in the expansion of are
Find .
Please help ASAP... thanks so much!
●
●
BlackjackEd
Jan 9, 2024
0
51
1
+1768
help with geometry
Help need
●
bader
Jan 9, 2024
0
34
1
+1768
Need help
How do you solve this?
●
bader
Jan 9, 2024
0
27
3
+1678
Geometry Problem
A semicircle inscribed inside a quarter circle. Find the length of a chord of the quarter circle that is also a tangent of the semicircle.
read more ..
●
●
●
wiseowl
Jan 9, 2024
0
20
1
+1457
Frustum
Find the total surface area and the volume of the conical frustum below.
●
kittykat
Jan 9, 2024
«
latest
9442
9441
..
9095
9094
9093
9092
9091
..
2
1
»
Post New Question
0 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.