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
230410 Questions
0
191
1
help geometry
Point D is on side AC of triangel ABC such that angle ADB = angle ABD and angle ABC - angle ACB = 37 degrees. Find angle DBC in degrees.
●
Guest
Aug 4, 2022
0
193
1
algebra
Mira’s parents planted an apple tree when she was born. In the year Mira turned 8 years old, the tree started bearing fruit. That year, there were 48 apples. The number of apples increased by 60% every year after that. How many apples grew on the tree in
read more ..
●
Guest
Aug 4, 2022
0
216
1
help algebra
A year ago, Karen grew some popcorn. She removed kernels from the cob and put them in containers. She had 14 containers each holding 6 pounds 9 1/8 ounces and one container holding 4 pounds 7 3/8 ounces. In all, she had x pounds y ounces of popcorn
read more ..
●
Guest
Aug 4, 2022
0
208
1
Send help Algrebra
After weighing all but one of her children, Noni realized that if her last child weighed 94pounds, her children’s average weight would be 85 pounds. If, however, her last child had weighed 58 pounds, then this average would be only 81 pounds. How many children
read more ..
●
Guest
Aug 4, 2022
0
198
1
Trapezoid
Find the length of the missing side of the trapezoid below.
●
Guest
Aug 4, 2022
0
187
1
coordinates
The points (a,1), (9,0), and (-3,4) lie on a straight line. Find a.
●
Guest
Aug 4, 2022
+1
225
1
+248
functions
The function $f$ satisfies \[f(\sqrt{x + 1}) = \frac{1}{x}\]for all $x \ge -1,$ $x\neq 0.$ Find $f(2)$.
●
Blizzardshine
Aug 4, 2022
0
136
0
functions
Let
f(x) = -x + 3 if x <= 0
f(x) = 15x + 2 + x^2 if x > 0
How many solutions does the equation f(f(x)) = 4 have?
read more ..
Guest
Aug 4, 2022
0
201
1
geometry
In triangle PQR, angle P = angle Q + angle R + 30 degrees. Of all three exterior angles of triangle PQR, what is the least exterior angle, in degrees?
●
Guest
Aug 4, 2022
0
197
1
system
For a certain value of k, the system
x + y + 3z = 10
-4x - 3y + 5z = 7
kx + z = 3
read more ..
●
Guest
Aug 4, 2022
0
201
1
quadratic
Find the sum of all possible positive integer values of b such that the quadratic equation 2x^2 + 15x + b = 0 has rational roots.
●
Guest
Aug 4, 2022
0
207
1
range
Compute the range of the function f(x) = sqrt(1/x^2).
●
Guest
Aug 4, 2022
0
196
2
counting
How many ways are there to put 5 balls in 2 boxes if the balls are distinguishable and the boxes are indistinguishable?
●
●
Guest
Aug 4, 2022
0
175
1
quadratic
Find all values of x such that 6 = 35/x - 49/x^2 + 5/x^2. If you find more than one value, then list your solutions in increasing order, separated by commas.
●
Guest
Aug 4, 2022
0
262
2
Help!
What is the product of all positive integers
that satisfy the inequalities
and
read more ..
●
●
Guest
Aug 4, 2022
0
227
1
+140
Advanced Inequalities
The number and its radical conjugate have a sum of and a product of . Find a+b.
●
sherwyo
Aug 4, 2022
0
179
3
help please
Each of two isosceles triangles has a base whose length is 2x. The altitude to the base ofone triangle, and a leg of the other triangle, each has lengthy. Suppose thatx:y= 5 : 8.Find the ratio of the area of the smaller triangle to the area of the larger
read more ..
●
●
●
Guest
Aug 4, 2022
0
169
1
Algebra
There are numbers A and B for which
A/(x - 1) + B/(x + 1) = (2x + 1)/(x^2 - 1)
for every number $x \neq \pm 1$. Find B.
●
Guest
Aug 4, 2022
Aug 3, 2022
0
191
2
Minimum value
Find the minimum value of
x^2 + 2xy + y^2 + x + y + 1
read more ..
●
●
Guest
Aug 3, 2022
0
235
2
Unit 8 Financial literacy question Please help
Jordon and Mike are both planning on attending university in Calgary. Jordon's prents rent him a one-bedroom apartment for $750 per month. Mike's parents bought a 3-bedroom house for $285000 that required a down payment of 10% and offered a mortgage amorized
read more ..
●
●
Guest
Aug 3, 2022
0
211
3
coordinates
The points (0,4) and (1,8) lie on a circle whose center is on the x-axis. What is the radius of the circle?
●
●
●
Guest
Aug 3, 2022
0
138
0
quadratics and real roots
What is the largest number c such that 2x^2 + 5x + c = -x^2 + 12x + 18 has at least one real solution? Express your answer as a common fraction.
Guest
Aug 3, 2022
0
211
1
+248
Any tricks for this?
If $f(x) = 8x^3 - 6x^2 + 12x - 0$, what is the value of $f\left(\dfrac{3}{4}\right)$?
●
Blizzardshine
Aug 3, 2022
+5
260
1
+179
hi :)
The sides of triangle PQR are tangent to a circle with center C as shown. Given that angle PQR=65 deg and angle QRC=30 deg, find angle QPR, in degrees.
read more ..
●
waterlili
Aug 3, 2022
0
203
1
Graphing question
A and B are constants such that the graphs of xy = B and y = Ax^2 + B intersect at the point (2,8). Write the ordered pair (A,B).
●
Guest
Aug 3, 2022
«
latest
9215
9214
..
8518
8517
8516
8515
8514
..
2
1
»
Post New Question
2 Online Users
Top Users
+128406
CPhill
moderator
+118608
Melody
moderator
+33614
Alan
moderator
+14903
asinus
moderator
+9519
MaxWong
+3144
admin
administrator
+2440
GingerAle
+1763
tomtom
+1370
bader
+1037
parmen
+1030
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.