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}
192843 Questions
0
81
1
help needed
In the figure, \(AB\) is parallel to \(CD\). If \(AB =4 \text{ cm}\) and \(AD=2 \text{ cm}\), angles \(D\) and \(C\) are \(30^\circ\) and \(60^\circ\) respectively. Find the area of the figure (in \(\text{cm}^2\)).
I've been stuck
read more ..
●
Guest
Jan 14, 2021
+1
94
1
+44
Algebra Help
If 8-x2-y2-2xy=0, for real numbers x and y, what is the value of |x+y|? Express your answer in simplest radical form.
●
GR0001
Jan 14, 2021
0
88
1
algebra
Our badminton team has finished 75% of its season, during which we won 30% 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?
●
Guest
Jan 14, 2021
0
51
0
non-congruent triangles
How many non-congruent triangles have vertices at three of the eight points in the figure?
Guest
Jan 14, 2021
0
90
1
pentagon
The picture shows a regular pentagon ABCDE. Find the ratio of the area of triangle ABD to the area of pentagon ABCDE.
●
Guest
Jan 14, 2021
0
80
1
numbers
Given positive integers x and y such that x does not equal y and 1/x + 1/y = 1/28 , what is the smallest possible value for x+y ?
●
Guest
Jan 14, 2021
0
158
4
+33
What are the last two digits in the sum of factorials of the first 100 positive integers?
What are the last two digits in the sum of factorials of the first 100 positive integers?
●
●
●
●
guest.exe
Jan 14, 2021
0
97
3
+11
Can anyone do this problem
solve this problem plz!
https://docs.google.com/document/d/1-eBRfV_S8F4TmPyykRdCHZI_7l8gQXWB-weELorikew/edit
●
●
●
angelthecutehamster
Jan 14, 2021
+1
65
1
Astronomy question
Suppose the width of your index finger is 0.7 inches and the length of your arm is 32.2 inches. Based on these measurements, what will be the angular width (in degrees) of your index finder held at arm’s length?
anyone know this?
read more ..
●
Guest
Jan 14, 2021
+1
87
2
help geo
Let ABCD be a square. Three parallel lines x,y, and z pass through A, B and C respectively. The distance between x and y is 4 and the distance between y and z is 5. Find the area of the square.
●
●
Guest
Jan 14, 2021
0
78
2
I need HELP!!
If is twice , then what is in terms of ?
●
●
Guest
Jan 14, 2021
0
46
0
coordinate lines
Two lines pass through the point (–6, 7) and each is a distance of 2 from the origin at their closest to the origin. What is the sum of the slopes of these lines?
Guest
Jan 14, 2021
0
82
1
+4
Write the slope-intercept form of the equation of the line shown in the graph.
Write the slope-intercept form of the equation of the line shown in the graph.
●
mwallace
Jan 14, 2021
0
82
1
Does you calculator show if a decimal is rational or irrational?
How do you tell if a decimal keeps going.
●
Guest
Jan 14, 2021
0
95
4
please help
In a circle with center \(O\) and radius \(5\), \(AB\) is a diameter. Points \(C\) and \(H\) on the circumference are such that \(CB=1.25\) and \(OH\) and \(CB\) are parallel . Find the length of \(CH\).
read more ..
jugoslav
●
●
●
●
Guest
Jan 14, 2021
0
101
2
Dilations
What really confuses me is just the center part, it messes up my calculations. Could someone help?
●
●
Guest
Jan 14, 2021
0
103
4
+236
Plz help
My friend sets out walking at a speed of $3$ miles per hour. I set out behind her $5$ minutes later at $4$ miles per hour. For how many minutes will my friend have been walking when I catch up to her?
●
●
●
●
Choff
Jan 14, 2021
0
64
1
isosceles triangle
Two angles of an isosceles triangle are $68^\circ$ and $x^\circ$. What are all the possible values of $x$?
●
Guest
Jan 14, 2021
+2
96
1
+373
Help please
Help. I don't know how to start
●
MobiusLoops
Jan 14, 2021
0
71
1
+236
I need help I can't get this wrong again also plz explain how u got the answer
My friend sets out walking at a speed of $3$ miles per hour. I set out behind her $5$ minutes later at $4$ miles per hour. When I start walking, how many miles has my friend traveled?
●
Choff
Jan 14, 2021
0
68
1
probability
Neil and Jean each choose a number at random from the set {1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12}; their numbers are allowed to be the same. What is the probability that the product of those two numbers is even?
●
Guest
Jan 14, 2021
0
64
1
+236
Plz help I really need it this is really confusing
The exchange rate of U. S. dollars ($) to Icelandic kronur (ISK) is $\$1.00 = 120\text{ ISK}. On a trip to , Geri orders a meal for . What is the equivalent price in U. S. dollars and cents? Enter your answer in the form ab.cd, where $a, b, c,$ and $d$
read more ..
●
Choff
Jan 14, 2021
«
latest
7712
7711
..
7351
7350
7349
7348
7347
..
2
1
»
Post New Question
56 Online Users
Top Users
+117917
CPhill
moderator
+112939
Melody
moderator
+32057
Alan
moderator
+31204
ElectricPavlov
+22017
geno3141
+12510
Omi67
moderator
+11279
asinus
moderator
+9280
hectictar
+8455
MaxWong
+5261
rarinstraw1195
+3103
admin
administrator
Sticky Topics
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
Filter Issues
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
https://www.desmos.com/calculator/bsh9ex1zxj
@ Is PROCRASTINATION a problem for you ?
Historical post!
What is happening? Wrap #4
Great Questions to Learn From 2
Great Answers to Learn From
Reference Material