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
234927 Questions
0
338
1
help with coordinates
Consider the rectangular region with the following points as vertices: (5,4), (-5,4), (-6,-5), (6,-5).How many points with integer coordinates will be strictly in the interior of this rectangular region?
●
Guest
Oct 2, 2021
0
342
4
HELP!
If Jane walks North for 3 miles, turns 45 degrees to the right, and then walks another 4 miles, how many miles will Jane be from her starting point? Give your answer as a decimal rounded to the nearest hundredth.
●
●
●
●
Guest
Oct 2, 2021
0
420
1
In the diagram below, we have XY=9, WX=12, and YZ=5. If is perpendicular to then what is XZ
In the diagram below, we have XY=9, WX=12, and YZ=5. If is perpendicular to then what is XZ
●
Guest
Oct 2, 2021
0
346
1
Digit question
The number 55 was multiplied by a 55-digit number containing only ones. What is the sum of the digits of the product?
●
Guest
Oct 2, 2021
0
392
14
CPHILL PLEASE HELP ME
In right triangle, ABC, the length of side AC is 8 the length of side BC is 4 and C is 90 degrees The circumcircle of triangle ABC is drawn. The angle bisector of ACB meets the circumcircle at point M Find
read more ..
●
●
●
●
●
●
●
●
●
●
●
●
●
●
Guest
Oct 2, 2021
0
363
1
Algebra
A box contains orange balls and green balls. The number of green balls is eight more than two times the number of orange balls. If there are 59 balls altogether, then how many green balls and how many orange balls are there in the box?
●
Guest
Oct 2, 2021
0
547
1
help with probability
There is a bag filled with 6 blue and 5 red marbles.A marble is taken at random from the bag, the colour is noted and then it is replaced. Another marble is taken at random. What is the probability of getting at least 1 red?
●
Guest
Oct 2, 2021
0
344
1
need help
Write $\frac{\sqrt{2}}{\sqrt{2} + \sqrt{5}}$ with a rational denominator.
●
Guest
Oct 2, 2021
0
322
1
Coordinates
In terms of pi, what is the area of the circle defined by the equation 2x^2+2y^2+20x-16y-18=0
●
Guest
Oct 2, 2021
0
306
1
Counting
In how many ways can we form an international commission if we must choose one European country from among 6 European countries, one Asian country from among 14, one North American country from among 3, and one African country from among 7?
●
Guest
Oct 2, 2021
0
345
1
help geometry
Given right triangle ABC with altitude BD drawn to hypotenuse AC. If BD = 2 and DC = 14, what is the length of AD? (Note: the figure is not drawn to scale.)
●
Guest
Oct 2, 2021
0
335
1
Analytic geo
At what point does the graph of 3x+4y=15 intersect the graph of x^2+y^2=25? Express any non-integer coordinate as a common fraction.
●
Guest
Oct 2, 2021
0
336
1
Algebra
The square root of t is greater than 2 and less than $8.5$. How many integer values of t satisfy this condition?
●
Guest
Oct 2, 2021
0
302
1
In ABC, we have AB=16, BC=14, and Angle A=60. Find the sum of all possible values of AC.
In ABC, we have AB=16, BC=14, and Angle A=60. Find the sum of all possible values of AC.
●
Guest
Oct 2, 2021
0
317
1
Statistics
For a certain set of five numbers, the mean of all but the largest number is 80, and the mean of all but the smallest number is 96. What is the range of the set of five numbers?
●
Guest
Oct 2, 2021
0
443
1
counting problem
1. Nine points are arranged in a 3 x 3 grid, as shown below. In how many different ways can you choose three points, so that they form a triangle?
read more ..
●
Guest
Oct 2, 2021
0
223
0
help counting
In how many ways can you spell the word FOOT in the grid below? You can start on any letter F, then on each step you can step one letter in any direction (up, down, left, right, or diagonal)
\begin{array}{cccc} F & F &
read more ..
Guest
Oct 2, 2021
0
184
0
need help
Find the number of ordered triples (a,b,c) of integers such that 0 <= a, b, c <= 5 and
\[a + b + c = 12.\]
Guest
Oct 2, 2021
0
248
1
For what real number k is the equation an identity that is always true for every real number x?
For what real number k is the equation an identity that is always true for every real number x?
●
Guest
Oct 2, 2021
0
319
3
help with variables
Four positive integers A, B, C and D have a sum of 36. If A+2 = B-2 = C+2 = D-2, what is the value of the product ABCD?
●
●
●
Guest
Oct 2, 2021
0
394
3
In the diagram below, we have XY=9, WX=12, and YZ=5. If is perpendicular to then what is XZ
In the diagram below, we have XY=9, WX=12, and YZ=5. If is perpendicular to then what is XZ
●
●
●
Guest
Oct 2, 2021
0
324
1
help with variables
The sum of the real numbers x and y is 25. Their difference is 18. What is the value of xy ?
●
Guest
Oct 2, 2021
0
314
1
Graphing question
The graph of y = f(x) is shown in red below. For how many values of c is f(c) = -1?
read more ..
●
Guest
Oct 2, 2021
0
249
1
help simplify
Simplify $\left( \frac{4}{x} \right)^{-1} \left( \frac{3x^3}{x} \right)^3 \left( \frac{1}{x} \right)^{-3}$.
●
Guest
Oct 2, 2021
0
334
2
quick please help. last question
During a driver education class, the students were told to put their hands on the steering wheel on "3'' and "9'', just as on the face of a clock. If, instead, the students placed their hands on the "2'' and the "10'', by how many degrees
read more ..
●
●
Guest
Oct 2, 2021
«
latest
9396
9395
..
8010
8009
8008
8007
8006
..
2
1
»
Post New Question
0 Online Users
Top Users
+118658
Melody
moderator
+37091
ElectricPavlov
+33653
Alan
moderator
+14985
asinus
moderator
+5265
rarinstraw1195
+3146
admin
administrator
+2653
LiIIiam0216
+2489
GingerAle
+1911
tomtom
+1837
NotThatSmart
+1758
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.