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
236405 Questions
0
287
1
Floor function
How many values of r are there such that floor(4r) + r = 15.5?
●
Guest
May 11, 2022
0
174
0
Domain
What is the smallest integer value of c such that the function f(x) = (2x^2 + x + 5)/(x^2 - 24x + c) has a domain of all real numbers?
Guest
May 11, 2022
0
176
0
Parabola
How many y-intercepts does the graph of the parabola x = -y^2 + 4y - 4 - 2y + 7 have?
Guest
May 11, 2022
0
305
2
Number Theory
N is a four-digit positive integer. Dividing N by 9, the remainder is 5. Dividing n by 7, the remainder is 2. Dividing n by 5, the remainder is 1. What is the smallest possible value of N?
●
●
Guest
May 11, 2022
0
173
0
Function
The function f : R ->R satisfies
f(x) f(y) = f(x + y) + f(xy)
for all real numbers x and y. Find all possible functions f.
Guest
May 11, 2022
0
317
1
+328
Samia set off on her bicycle to visit her friend, traveling at an average speed of 17 kilometers per hour. When
Samia set off on her bicycle to visit her friend, traveling at an average speed of 17 kilometers per hour. When she had gone half the distance to her friend's house, a tire went flat, and she walked the rest of the way at 5 kilometers
read more ..
●
Potatobird
May 11, 2022
0
237
1
Algebra
Let a, b, and c be integers that satisfy 2a+3b=52, 3b+c=41, and bc=60. Find a+b+ c.
●
Guest
May 11, 2022
0
257
1
Samia set off on her bicycle to visit her friend, traveling at an average speed of 17 kilometers per hour. When
Samia set off on her bicycle to visit her friend, traveling at an average speed of 17 kilometers per hour. When she had gone half the distance to her friend's house, a tire went flat, and she walked the rest of the way at 5 kilometers
read more ..
●
Guest
May 11, 2022
0
257
1
Driving along a highway, Megan noticed that her odometer showed 15951 (miles). This
Driving along a highway, Megan noticed that her odometer showed 15951 (miles). This number is a palindrome-it reads the same forward and backward. Then 2 hours later, the odometer displayed the next higher palindrome. What was her average
read more ..
●
Guest
May 11, 2022
0
299
1
+328
Sofia ran 5 laps around the 400-meter track at her school. For each lap, she ran the first 100 meters at an average speed
Sofia ran 5 laps around the 400-meter track at her school. For each lap, she ran the first 100 meters at an average speed of 4 meters per second and the remaining 300 meters at an average speed of 55 meters
read more ..
●
Potatobird
May 11, 2022
0
174
0
math problem
Find the number of triples (a, b, c) of positive integers, such that 1 <= a, b, c <= 100 and a^2 + b^2 + c^2 = ab + ac + bc + 1.
Guest
May 11, 2022
0
214
0
Number Theory
How many different positive values of x will make this statement true: there are exactly positive two-digit multiples of x.
Guest
May 11, 2022
0
179
0
help coordinates
What is the area in square units of the convex quadrilateral with vertices (-1, 0), (0, 1), (-2, 0) and (0, -3)?
Guest
May 11, 2022
0
239
1
Please Help
Alejandra's Tapas Bar offers a menu consisting of savory and sweet dishes. You can also get a mix-and-match plate consisting of two different dishes on the menu.
How many different mix-and-match plates can you get consisting of
read more ..
●
Guest
May 11, 2022
0
193
0
Polynomial
If f is a polynomial of degree 3, such that f(0) = f(2) = f(3) = 1 and f(1) = 0, find f(4).
Guest
May 11, 2022
0
339
1
help pls
Let a_1, a_2, a_3, be an arithmetic sequence. If a_1 + a_3 + a_5 = -12 and a_1a_3a_5 = 80, find all possible values of a_{10}.
●
Guest
May 11, 2022
0
239
1
interval notation
Express this collection of points on the number line using interval notation.
●
Guest
May 11, 2022
0
251
1
Please help on this
At first. the ratio of Sean’s savings to Eugene’s savings was 3:7. After each of them bought a similar laptop for $1488. the ratio of Sean’s savings to Eugene’s savings became 1:4. What was the total sum of savings Sean and Eugene had at first?
read more ..
●
Guest
May 11, 2022
0
217
1
values of function help!!!
The values of a function $f(x)$ are given in the table below.
x 1 2 3 5 8 13
f(x) 3 13 8 1 0 5
If $f^{-1}$ exists, what is $f^{-1}\left(\frac{f^{-1}(5)
read more ..
●
Guest
May 11, 2022
0
172
0
Find the volume of the solid
Find the apporximate volume
Guest
May 11, 2022
0
358
1
Help
If ,
$f(x)=\frac{16}{5+3x}$
what is the value of
$\left[f^{-1}(2)\right]^{-2}$
read more ..
●
Guest
May 11, 2022
0
417
2
Geometry
A cylindrical cup is 8 centimeters in height. When filled to the very top, it holds 392𝝅 cubic centimeters of water. What is the radius of the cup, rounded to the nearest hundredth
●
●
Guest
May 11, 2022
0
229
1
Geometry
a right square pyramid has a slant height of 5, a base area of 6, and a height of 4. what is the volume?
●
Guest
May 11, 2022
«
latest
9455
9454
..
8356
8355
8354
8353
8352
..
2
1
»
Post New Question
2 Online Users
Top Users
+130097
CPhill
moderator
+37158
ElectricPavlov
+15001
asinus
moderator
+3146
admin
administrator
+2729
LiIIiam0216
+2539
GingerAle
+1944
NotThatSmart
+1927
tomtom
+1770
bader
+1577
parmen
+1560
blackpanther
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.