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
377
1
MATHS
Mary had $488 more than Rachel at first. After each girl spent the same amount of money at a shop, Rachel had 3/5 of her money left while Mary had 6/7 of her money left. How much money did they have left altogether?
●
Guest
Oct 7, 2021
0
323
1
maths
Mary had $488 more than Rachel at first. After each girl spent the same amount of money at a shop, Rachel had of her money left while Mary had of her money left. How much money did they have left altogether?
●
Guest
Oct 7, 2021
0
6
424
2
PHYSICS
A boy standing on a 20m tall bridge sees a motorboat approaching the bridge at a constant speed. When the boat is 2.7 m from the bridge, the boy drops a stone to the water below. If the stone strikes the water 2.5 m in front of the bow of the boat at what
read more ..
●
●
Guest
Oct 7, 2021
0
203
0
Exponential functions
If f(x) is an exponential function where f(3) = 18 and f(7.5) = 60, then find thevalue of f(12), to the nearest hundredth.
Guest
Oct 7, 2021
0
329
1
Quadratic
What real value of produces the smallest value of the quadratic t^2 - 9t - 36 + t^2 - t + 4?
●
Guest
Oct 7, 2021
0
362
2
Counting
At Beaumont High School, there are 12 players on the baseball team. All 12 players are taking at least one of biology or chemistry. If 9 players are taking biology and 2 players are taking both sciences, how many players are taking chemistry?
●
●
Guest
Oct 7, 2021
0
393
1
Probability
The Grammar club has 20 members: 10 boys and 10 girls. A 4-person committee is chosen at random. What is the probability that the committee has 2 boys and 2 girls?
●
Guest
Oct 7, 2021
Oct 6, 2021
0
391
1
geometry
I took a screenshot of this question earlier but it got moderated idk why
D is on side AB of ABC We know triangle ABC ~ triangle ACD and we know all the marked side lengths.
What is the length of AB?
read more ..
●
Guest
Oct 6, 2021
0
313
1
geometry pls help
We know DE is parallel to BC. GIven = 9 and = 6, find .
●
Guest
Oct 6, 2021
0
348
1
triangle thingy
In triangle ABC, shown here, line AB and line AC have each been divided into 4 congruent segments. What fraction of triangle ABC is shaded? Express your answer as a common fraction.
read more ..
●
Guest
Oct 6, 2021
0
369
1
arithmetic
●
Guest
Oct 6, 2021
0
247
0
Conics
The graph of the equation x^2 + 4y^2 - 10x + 88y = k is a non-degenerate ellipse if and only if k > a. What is a?
Guest
Oct 6, 2021
0
266
2
Fractions
Joe traveled from Austin to Leander last week. Joe completed 4/5 of the distance in the morning and 1/5 of the remaining distance in the afternoon. I still had 12 miles to travel. What is the distance from Austin to Leander?
●
●
Guest
Oct 6, 2021
0
265
1
Help probability
A point in space (x,y,z) is randomly selected so that $-1\le x \le 1$,$-1\le y \le 1$,$-1\le z \le 1$. What is the probability that $x+y+z\le 1$?
●
Guest
Oct 6, 2021
0
270
1
HELPP MEHH
A table of values of a linear function is shown below. Find the output when the input is
n
.
input
read more ..
●
Guest
Oct 6, 2021
0
352
1
Inequality
Suppose 1/2 + 1/3 + 1/4 + ... + 1/x > 2.
What is the smallest possible value for x?
●
Guest
Oct 6, 2021
0
341
2
Please help. Thanks.
Xayden and Peter share some candies. If Xayden gives 2/5 of his share to Peter, Peter will have 156 more candies than him. If Xayden gives 3/4 of his share to Peter, Peter will have 240 more candies than him. How many candies must Peter give to Xayden
read more ..
●
●
Guest
Oct 6, 2021
0
234
0
Help me with this
Three friends are sharing some coins.
Emma gets of the coins.
read more ..
Guest
Oct 6, 2021
0
375
1
Decimals
Let $x = (0.\overline{6})(0.\overline{06})$. When x is written out as a decimal, what is the sum of the first 15 digits after the decimal point?
●
Guest
Oct 6, 2021
0
354
2
Decimals
Let $y = 0.(\overline{123}) + (\overline{345})$. When y is written out as a repeating decimal, what is the sum of the digits in a single repeating period? (In other words, what is the sum of the digits covered by the repeat bar?)
●
●
Guest
Oct 6, 2021
0
246
1
Probability
I have two cubes such that, on each cube, three faces are painted red and three faces are painted white. If I roll each of the cubes once, what is the probability that they will land such that there are two red faces up?
●
Guest
Oct 6, 2021
0
360
1
Help math
I tell you these facts about a mystery number, c:
* 1.2 < c < 1.3
* c can be written as a fraction with one digit for the numerator and one digit for the denominator.
* Both c and 1/c can be written as finite (non-repeating)
read more ..
●
Guest
Oct 6, 2021
0
363
1
please help
john can rent a life jacket for a flat fee of $6.00 and a canoe for $5.00 per hour. If the total charge is $41.00, how many hours did he rent the canoe
please help
●
Guest
Oct 6, 2021
0
349
1
Combo problem
Brent rolls a fair dodecahedral die with numbers 1,2,3,...,11,12 on its faces. What is the expected number he obtains? Express your answer in a decimal.
●
Guest
Oct 6, 2021
0
336
1
Decimals
Write $\frac{99}{100} (0.\overline{42})$ as a fully simplified fraction.
●
Guest
Oct 6, 2021
«
latest
9396
9395
..
8020
8019
8018
8017
8016
..
2
1
»
Post New Question
3 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.