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
237779 Questions
0
312
3
Solving this equation
In solving the system of equations and x^2+y^2=56 what is the sum of the solutions for x?
●
●
●
Guest
Jun 15, 2022
0
368
15
Solve The Inequality \frac{3-z}{z+1} \geq 1
Solve The Inequality
\frac{3-z}{z+1} \geq 1
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
Guest
Jun 15, 2022
0
325
1
In solving the system of equations y=7 and x^2+y^2=100 what is the sum of the solutions for x?
In solving the system of equations y=7 and x^2+y^2=100 what is the sum of the solutions for x?
●
Guest
Jun 15, 2022
0
299
2
help plz
If one zero of the polynomial 3x^2 + 12x - k is reciprocal of the other , then find the value of k.
●
●
Guest
Jun 15, 2022
+1
330
1
+349
$\displaystyle \mathuf{why \ is \ this \ so \ cool \ I \ love\space latex}$
$\displaystyle \mathrm{\underline{why \ is \ this \ so \ cool \ I \ love\space latex}} \ and \ \textbf{Omg why is this even cooler} \ and \ \textit{why is this even cooler!}$
off-topic
●
hipie
Jun 15, 2022
0
360
1
Help function
Given that the point (9,7) is on the graph of y=f(x), there is one point that must be on the graph of 2y=2f(x)+2. What is the sum of coordinates of that point?
●
Guest
Jun 15, 2022
0
309
2
Counting question
How many license plates consist of 3 letters, followed by 2 even digits, followed by 2 letters?
BuilderBoi
●
●
Guest
Jun 15, 2022
0
296
1
Algebra
Suppose that a bottle rocket is launched upward with a initial velocity of 96ft/sec from a height of 880ft. Its height is h, in feet, after t seconds is given by h(t)=-16^2 + 96t + 880. After how long will the rocket reach the ground?
●
Guest
Jun 15, 2022
0
315
1
Number line
How many whole numbers lie in the interval between 5/3 and 2*pi + 4*sqrt(7)?
●
Guest
Jun 15, 2022
0
305
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 ..
BuilderBoi
●
Guest
Jun 15, 2022
0
279
1
I need help rn pls
If a and b must be nonnegative integers, what is the largest integer n such that 13a + 18b = n has no solutions?
●
Guest
Jun 15, 2022
0
293
1
Quadratic
A ball is thrown from an initial height of 3 meters with an initial upward velocity of 20m/s. The ball's height (in meters) after seconds is given by the following h=3+20t-5t^2. Find all values of t for which the ball's height is 13 meters.
●
Guest
Jun 15, 2022
0
269
4
Algebra
The sum of the real numbers x and y is 25. Their difference is 13. What is the value of xy ?
YeetSkeet
●
●
●
●
Guest
Jun 15, 2022
0
314
1
+4
transmitter circle problem
A small radio transmitter broadcasts in a 40 mile radius. If you drive along a straight line from a city 52 miles north of the transmitter to a second city 46 miles east of the transmitter, during how much of the drive will you pick up a signal from the
read more ..
●
drakee.23
Jun 15, 2022
0
323
1
Inequality
Solve the inequality k^2 - 7k + 12.25 > 0.
mworkhard222
●
Guest
Jun 15, 2022
0
274
1
+129
Fractions and Percentage
Fiona's salary was $3500. Fiona's salary was 7/10 of Howard's salary. If Howard's salary is decreased by 15% on next month, find the Howard's new salary.
●
Soyoxxommm
Jun 15, 2022
0
305
1
System
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
Jun 15, 2022
0
320
1
Algebra problem
Solve for y if 9^y = 3^5*9*6/(27*3).
●
Guest
Jun 15, 2022
0
313
1
help algebra
There are numbers A and B for which
A/(x - 1) + B/(x + 1) = (x + 8)/(x^2 - 1)
for every number $x\neq\pm1$. Find A-B
●
Guest
Jun 15, 2022
0
314
2
Algebra
Find the value of t such that (5x^2 - 6x + 7)(4x^2 +tx + 10) = 20x^4 -9x^3+ 60x^2 - 39x + 70.
●
●
Guest
Jun 15, 2022
0
315
1
Floor Function
How many values of r are there such that $\lfloor r \rfloor + r = 15.5 + \lfloor 4r \rfloor$ ?
●
Guest
Jun 15, 2022
0
335
2
geometry problem
M is the midpoint of PQ and N is the midpoint of PR, and O is the intersection of QN and RM, as shown. If QN is perpendicular to PR, QN = 12, and PR = 18, then find OR.
read more ..
●
●
Guest
Jun 15, 2022
0
316
1
Parabola
Find the vertex of the graph of the equation x - y^2 + 8y = 13 + y^2 - 4y.
BuilderBoi
●
Guest
Jun 15, 2022
+2
511
3
+252
The roots of $7x^2 + x - 5 = 0$ are $a$ and $b.$ Compute $(a - 4)(b - 4).$
The roots of $7x^2 + x - 5 = 0$ are $a$ and $b.$ Compute $(a - 4)(b - 4).$
BuilderBoi
●
●
●
Blizzardshine
Jun 15, 2022
0
305
1
Parabola
The red parabola shown is the graph of the equation ay^2 + by + c = x. Find a + b + c.
BuilderBoi
●
Guest
Jun 15, 2022
«
latest
9510
9509
..
8413
8412
8411
8410
8409
..
2
1
»
Post New Question
1 Online Users
Top Users
+130516
CPhill
moderator
+118723
Melody
moderator
+15131
asinus
moderator
+2221
Bosco
+1844
blackpanther
+1580
kittykat
+1309
AnswerscorrectIy
+1024
Hi6942O
+1022
gnistory
+1013
magenta
+980
booboo44
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.