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
236336 Questions
0
261
1
Area and Perimeter
Stephanie wants to replace the baseboards around the recreation room in her house. If the room is seven and one-seventh feet by five and a half feet, and the material she is interested in using costs $3.49 per foot, how much will it cost to buy the new
read more ..
●
Guest
Apr 9, 2022
0
191
0
Polynomial
Let P(x) be a cubic polynomial such that P(0) = -3 and P(1) = 4. When P(x) is divided by x^2 + x + 1, the remainder is 2x + 3. What is the quotient when P(x) is divided by x^2 + x + 1?
Guest
Apr 9, 2022
0
250
1
compound interest
you deposit $5000 each year into an account earning 2% interest compounded annually. How much will you have in the account in 35 years?
●
Guest
Apr 9, 2022
0
289
2
help appreciated
Find when
thank you!
●
●
Guest
Apr 9, 2022
0
231
1
Algebra
The equation y = -16t^2 + 28t + 144 describes the height (in feet) of a ball tossed up in the air at 28 feet per second from a height of 144 feet from the ground. In how many seconds will the ball reach a height of 150 feet? Round your answer to the
read more ..
●
Guest
Apr 9, 2022
0
177
0
trig
In right triangle XYZ with YXZ = 90 degrees, we have XY = 24 and YZ = 28. Find tan Y.
Guest
Apr 9, 2022
0
253
1
plz help
What is the following value when expressed as a common fraction:
1/2 + 1/2^2 + 1/2^3 + ... + 1/2^8 + 1/2^9 + 1/2^10 + 1/2^11 + 1/2^12
●
Guest
Apr 9, 2022
0
227
1
geometric sequence
Find the fifth term of the geometric sequence with first term 2 and second term 4.
●
Guest
Apr 9, 2022
0
229
1
geometric series
In the geometric sequence with a first term of 6 and a second term of -8 , what is the 205th term?
●
Guest
Apr 9, 2022
+8
340
3
+289
$\dfrac{1}{3} \times \dfrac{3}{5} \times \dfrac{5}{7} \cdots \times \dfrac{97}{99}$
$\dfrac{1}{3} \times \dfrac{3}{5} \times \dfrac{5}{7} \cdots \times \dfrac{97}{99}$
step by step is aprecciated
●
●
●
Glowlife
Apr 9, 2022
0
292
2
Let a, b, c be three vectors that lie on the same line. Find
Let a, b, c be three vectors that lie on the same line. Find
●
●
Guest
Apr 9, 2022
0
210
1
Inequality
Let a and b be real numbers. Find the maximum value of 2 + a*cos(x) + b*sin(y) in terms of a and b.
●
Guest
Apr 9, 2022
0
244
1
Geometry
The measure of the middle angle of a triangle is twice the smallest angle. The sum of the middle angle and the largest angle is 5 times the smallest angle. Find the measures of the angles.
●
Guest
Apr 9, 2022
0
245
3
help plz
Find the value of B-A if the graph of Ax+By=3 passes through the point (-7, 2) and is parallel to the graph of x + 3y = -5
●
●
●
Guest
Apr 9, 2022
0
5
495
13
im so bad at analyzation
A coin purse has 3 OLD one-peso coins and 7 NEW one-peso coins. Suppose you randomly pick a coin and upon selecting, a dummy silver coin is placed on the purse as a placeholder for the coin you picked. If a second coin is picked from the coin purse, what
read more ..
●
●
●
●
●
●
●
●
●
●
●
●
●
Guest
Apr 9, 2022
0
306
2
Math question
In 2007, the U.S. population was 302 million people. In 2012, it was 314 million. What was the rate of population change per year?
●
●
Guest
Apr 9, 2022
0
376
2
Sequences
Consider the geometric sequence 3, 9, 27, 81, .... Find the eighth term of the sequence. Express your answer as a common fraction.
●
●
Guest
Apr 9, 2022
0
282
2
1/4 of Mie's savings was equal to 2/5 of Cheko's savings. When Cheko increased his savings by $70 and Mie
1/4 of Mie's savings was equal
to 2/5 of Cheko's savings.
When Cheko increased his savings by $70 and Mie spent $134,
they had the same amount of savings.
How much savings did Cheko have
read more ..
●
●
Guest
Apr 9, 2022
0
330
4
Let be an angle such that P is the terminal point of :
Let be an angle such that P is the terminal point of :
Some of the points Q,R,S,T can be the
read more ..
●
●
●
●
Guest
Apr 9, 2022
0
242
1
Help Please!
The complex numbers z and w satisfy |z| = |w| = 1 and
(a) Prove that and
(b) Prove that is a real number.
●
Guest
Apr 9, 2022
0
230
1
Geometry
The incircle of radius 4 of a triangle ABC touches the side BC at D. If BD=6, DC=10, then what is the area of triangle ABC?
●
Guest
Apr 9, 2022
0
362
2
Complex Number
Find all complex numbers z such that .
Express each answer in the form a+bi , where a and b are real numbers.
●
●
Guest
Apr 9, 2022
Apr 8, 2022
0
336
6
Impossible Question!
Five children A, B, C, D, and E are fighting over who broke the precious vase. Here are their statements:
A: D broke it.
D: A lied when he said I broke it.
read more ..
●
●
●
●
●
●
Guest
Apr 8, 2022
«
latest
9452
9451
..
8290
8289
8288
8287
8286
..
2
1
»
Post New Question
4 Online Users
Top Users
+130071
CPhill
moderator
+37157
ElectricPavlov
+15001
asinus
moderator
+3146
admin
administrator
+2539
GingerAle
+2499
Solveit
+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.