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
230560 Questions
0
214
0
3d geometry
A sphere is inscribed inside a hemisphere of radius 2. A cube is inscribed in the sphere. What is the volume of this cube?
Guest
May 9, 2021
0
384
1
coordinates
Points A(0,0), B(6,0), C(6,10) and D(0,10) are vertices of rectangle ABCD, and E is on segment AB at (2,0) . What is the ratio of the area of triangle ADE to the area of quadrilateral ABCD? Express your answer as a common fraction.
read more ..
●
Guest
May 9, 2021
0
374
2
+56
Logarithms
Solve the following equation:
●
●
stressedmathkid123
May 9, 2021
-3
518
1
+16
I need help asap with these math questions I do not understand!
1. In a random sample of 74 homeowners in a city, 22 homeowners said they would support a ban on nonnatural lawn fertilizers to protect fish in the local waterways. The sampling method had a margin of error of ±3.1%. SHOW ALL WORK!
A) Find the point
read more ..
●
luckystar042003
May 9, 2021
0
474
2
+321
Expect/Probability
Suppose you have a weighted coin in which heads comes up with probability 3/4 and tails with probability 1/4. If you flip heads, you win $2 but if you flip tails, you lose $1 What is the expected win of a coin flip in dollars?
●
●
itachiuchihakujo
May 9, 2021
0
329
1
domain
What is the domain of the real-valued function
q(x) = sqrt(x)/sqrt(-1 + x^2)?
Express your answer as an interval or as a union of intervals.
●
Guest
May 9, 2021
0
218
0
algebra
Simplify and rationalize the denominator: 1/(1 + 1/(sqrt(3) + 2)).
Guest
May 9, 2021
0
246
0
probability
Andy spins a fair spinner numbered 1 - 5 and rolls a fair dice.
What is the probability of spinning a multiple of 4 and rolling a factor of 15?
Guest
May 9, 2021
0
335
1
algebra
If the roots of the quadratic equation 1/2*x^2 + 99x + c = 0 are x = -99 + sqrt(8021) and x = -99 - sqrt(8021), then what is the value of c?
●
Guest
May 9, 2021
0
425
3
+273
Help plz! thx everyone!
Suppose 5^x = 3. Find .
●
●
●
TheEarlyMathster
May 9, 2021
0
271
1
algebra
Each solution to x^2 + 5x + 18 = 0 can be written in the form a + bi where a and b are real numbers. What is a^2 + b^2?
●
Guest
May 9, 2021
0
318
1
algebra
Janice bought 30 items each priced at 30 cents, 2 dollars, or 5 dollars. If her total purchase price was $30.00, how many 30-cent items did she purchase?
●
Guest
May 9, 2021
0
260
1
algebra
There are two pairs (x,y) of real numbers that satisfy the equation x + y = 3, xy = 1. Given that the solutions x are in the form x = (a pm b*sqrt(c))/d where a, b, c, and d are positive integers and the expression is completely simplified, what
read more ..
●
Guest
May 9, 2021
-1
399
2
FOR YOU CPhill is a challenge
After my salary was increased by $16\%,$ it was $\$55{,}680$. What was my salary before the increase?
●
●
Guest
May 9, 2021
+1
491
3
+56
radical function graph
Determine the equation of the radical function below in the form of
Link to picture: https://drive.google.com/file/d/1zNitd9lgemypcl2cDNwPf9flWtQdBbaz/view?usp=sharing
●
●
●
stressedmathkid123
May 9, 2021
0
277
1
Help please!
For how many integer values of does the equation have integer solutions for x ?
Please help!
●
Guest
May 9, 2021
+1
335
1
function graph
Given the graphs of f(x) and (f-g)(x), sketch the graph of g(x)
I cannot paste link into post so here it is: https://drive.google.com/file/d/1bSgfi8Qlnh45bO-nJqHgc8JseoDq5Cyi/view?usp=sharing
●
Guest
May 9, 2021
0
233
0
Given the graphs of f(x) and (f-g)(x), sketch the graph of g(x)
Given the graphs of f(x) and (f-g)(x), sketch the graph of g(x)
Guest
May 9, 2021
+1
365
1
functions help
If points (a,b) are on the graph of y = f(x), what points must be on the graph of y = -3f(3x+6)-2?
●
Guest
May 9, 2021
0
832
2
+201
How many positive integers less than 1000 have at least one digit of 0?
How many positive integers less than 1000 have at least one digit of 0?
In how many ways can 45 cents be made using any combination of quarters, dimes, and nickels?
●
●
mathisopandcool
May 9, 2021
0
213
0
rationalizing denominators
Suppose that a, b, and c are real numbers such that a/b = sqrt(10)/sqrt(21) and b/c = sqrt(14)/sqrt(15). Find a/c. Completely simplify and rationalize the denominator.
Guest
May 9, 2021
0
261
1
coordinates
Let P be a point on the graph of equation, (x-94)^2 + (y-4)^2 = 44^2. What is the shortest possible distance between P and the x-axis?
●
Guest
May 9, 2021
0
244
0
coordinates
Find the distance between (3,-4) and the line 4x+8y+7=0.
Guest
May 9, 2021
0
252
1
coordinates
The line y=(3x+20)/4 intersects a circle centered at the origin at A and B. We know the length of chord AB is 24. Find the area of the circle.
●
Guest
May 9, 2021
0
347
1
help
If $h(x)$ is a function whose domain is $[-8,8]$, and $g(x)=h\left(\frac x2\right)$, then the domain of $g(x)$ is an interval of what width?
●
Guest
May 9, 2021
«
latest
9221
9220
..
7692
7691
7690
7689
7688
..
2
1
»
Post New Question
4 Online Users
Top Users
+128458
CPhill
moderator
+118608
Melody
moderator
+33615
Alan
moderator
+14913
asinus
moderator
+9519
MaxWong
+3144
admin
administrator
+2440
GingerAle
+1763
tomtom
+1484
bader
+1085
parmen
+1032
kittykat
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.