All Questions

1453

+2499

did i need to write everything down or there is easier way ?

Solveit ●●

Solveit Dec 26, 2015

896

+2499

The graph

The graph of a function in the xy-plane is a parabola that opens upward and has its vertex a point (c,d). If the line L is tangent to the parabola at its vertex, which of the following must be another point on line L
A) (-5,d)
B) (-5-d) read more ..

Solveit ●●●●

Solveit Dec 26, 2015

641

طريقة كتابة المتغير y

كيف اكتب المتغير y ؟

Melody ●●

Guest Dec 26, 2015

+10

844

+8262

Merry Christmas (A bit TOO late!)!

Hello all! Merry Xmas to all here! I hope you enjoy your festival/holiday! Mine is very Chritsian, and I enjoy it! No presents but still love it! Thanks to all to the forum! If you lived close to me, I would give presents to all of you! My birthday wasn't read more ..

rosala ●●●●

DragonSlayer554 Dec 26, 2015

1205

find factor

find factor: x^2-2xy+y^2+3x-3y-4

Melody ●●●

Guest Dec 26, 2015

579

HOW TO FIGURE PERCENTAGES

Guest Dec 26, 2015

Dec 25, 2015

640

Deferred Annuity

Jack is 45 years old and a small business owner. He intends to retire at 65. To that end, he purchased a stripped coupon for $311,804.73 to mature on his retirement date. On his retirement, he plans to withdraw annual annuity payments from his retirement read more ..

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Guest Dec 25, 2015

751

Dear sir/madame, I would like to know about a math problem. If we start with an amoun of 100 and in 100 weeks it becomes 1.3M we increase it weekly by 10

Dear sir/madame, I would like to know about a math problem. If we start with an amoun of 100 and in 100 weeks it becomes 1.3M we increase it weekly by 10 procent. I assume the formula is: 100x1,1^100=1.3 now I would like to know if 1.3 is 1000 1000=100x1,1^A, read more ..

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Guest Dec 25, 2015

1353

Quintic convergence of Pi.....

Why does the following simple formula converge QUINTICALLY, or order 5, to the constant Pi?:
ⁿₐ₊₁=ⁿₐ+sin(ⁿₐ)+1/6(sin³)ⁿₐ . Any insights will be greatly appreciated. Thanks a lot.

advanced

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Guest Dec 25, 2015

570

Find a, b...........

Hello and Merry Xmas: Can you please try and see if you can find the missing rational fraction (a/b), so that the identity is true: Pi/4=22arctan(1/38)+17arctan(7/601)+10arctan(a/b), find a/b. Thanks and have a great Christmas.

CPhill ●●

Guest Dec 25, 2015

541

answer plz

The growth of bacteria in a dish modeled by the function 2 to the power of t/2. For which value t is f(t)=32

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Guest Dec 25, 2015

+24

1259

+118724

@ Wrap Lantern Fri 25/12/15 Christmas Day

The is called the Lantern Post because it lights the way to the "What is happening" thread
The "What is Happening" thread can be accessed directly. It is at the following address:

http://web2.0calc.com/questions/what-is-happening-wrap-4#r60 read more ..

Melody Dec 25, 2015

+42

2329

+1316

A Christmas Story from Dragonlance’s Journal.

A Christmas Story from Dragonlance’s Journal.

Christmas 2014. Santa’s SOL list.
--------------- read more ..

Dragonlance ●●●●●●●●●

Dragonlance Dec 25, 2015

+42

2050

+1316

Dragonlance’s Journal stories.

A Ouija board story.

Halloween eve 2014
read more ..

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Dragonlance Dec 25, 2015

555

Comparison of 5 Great Mathematicians throughout World History

Here it is [chron?] → Arch, Newt, Lieb, Eule, Gaus

Guest Dec 25, 2015

708

Greatest Math Guy????

Who is the greatest mathematician of all Time??? [on Eearth of course]

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Guest Dec 25, 2015

471

Not Homework Not anything just bored

Guest Dec 25, 2015

552

Who knows how to prove Fermats Last Theorem??

Who knows how to prove Fermats Last Theorem??
No need to mention a Princeton dude with a 300 page proof.

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Guest Dec 25, 2015

+33

1745

+118724

@ Merry Christmas 2015

Nauseated ●●●●●●●●●●●●●●●●●●●●●●●

Melody Dec 25, 2015

767

math 3Q

1. what is mathematics? 2. why bother? 3. who u think great?

Guest Dec 25, 2015

1239

Mathematica Talent Contest

which greater? Plato Aristotle Euclid Archimedes Apollonius Fermat

Melody ●●●

Guest Dec 25, 2015

378

math

what is 304530*445 = 13350 9*5 = 45

Guest Dec 25, 2015

Dec 24, 2015

509

estimating

what to estimate 28 to

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Guest Dec 24, 2015

All Questions ⁺⁰237665 Questions

did i need to write everything down or there is easier way ?

The graph

طريقة كتابة المتغير y

Merry Christmas (A bit TOO late!)!

find factor

HOW TO FIGURE PERCENTAGES

Deferred Annuity

Dear sir/madame, I would like to know about a math problem. If we start with an amoun of 100 and in 100 weeks it becomes 1.3M we increase it weekly by 10

Quintic convergence of Pi.....

Find a, b...........

answer plz

@ Wrap Lantern Fri 25/12/15 Christmas Day

A Christmas Story from Dragonlance’s Journal.

Dragonlance’s Journal stories.

Comparison of 5 Great Mathematicians throughout World History

Greatest Math Guy????

Not Homework Not anything just bored

Who knows how to prove Fermats Last Theorem??

@ Merry Christmas 2015

math 3Q

Mathematica Talent Contest

math

estimating

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