All Questions ⁺⁰234908 Questions

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824

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math help

im having trouble finding the y intercept of sqrt(x+4) - 1
please help!!

Guest Jan 26, 2013

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627

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Sizes of infinity

Sizes of infinity

Guest Jan 26, 2013

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661

2

triangle corners

i have one 90 degrees corner
a and b , a is 135cm and b is 300cm
i need alfa and beeta

Guest Jan 26, 2013

Jan 25, 2013

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707

2

Adding and Subtracting Radical expressions

I am trying to solve this 4*rad(2)+7*rad(2)-3*rad(2)
it is giving me a decimal answer around 11, is there a way i can get a simplified answer with it.

Guest Jan 25, 2013

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698

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inequality

what is 4x-6>-10

Guest Jan 25, 2013

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619

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Trigonometry

HI everyone, i wont to know how can i calculate sin and cos on the different angles. for example cos37, how can i compute this quantity WITHOUT calculator.
and a second question: how did firs mathematics calculated this quantities?

Guest Jan 25, 2013

Jan 24, 2013

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665

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Interesting relation..coincidence ?

I found this relation, with regards to predicting the number of digits of a kind of numbers:
I found that, when considering numbers, such that they are 4^(5n), i.e 4 raised to a multiple of 5, then the number of digits is always(for all numberis I tried, read more ..

Guest Jan 24, 2013

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660

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mathematical logic

[size=150]A cashier working with 20 customers in an hour. a second cashier also works with 20 people in 40 minutes. how long they will need to serve 20 customers, if they work together?
how to calculate?
find, that the first cashier works 20 custonesr read more ..

Guest Jan 24, 2013

Jan 23, 2013

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628

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CONFUSING QUESTION

CONFUSING QUESTION
a solution of 60% alcohol is to be mixed with a solution of 26% alcohol to form 68 liters of a 41%solution. how many liters of the 60% solution must be used?

Guest Jan 23, 2013

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848

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quadratic functions

ARRGG. Please help me with this quadratic equation and explain the process...here is what I have so far...
x2 + -14x + 45 = 0
formula x=-b+√b^2-4ac/2a
-(-14)+√-14^2-4(1)(45)
14+√196-180/2 14+√16/2??? I know the answer is 5,9 but read more ..

Guest Jan 23, 2013

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734

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Volumetric formula

What is the formula for calculating the volume of a cylinder?

Guest Jan 23, 2013

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618

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math question

what is the function f(x) = x^3 + x is?

Guest Jan 23, 2013

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698

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stats help

Can someone break down in the simplest form, how to obtain the standard deviation and sample variance when given a set of numbers?

Guest Jan 23, 2013

Jan 22, 2013

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712

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Rational Exponent Notation

Evaluate :
(^3radical.over-8)^5

Guest Jan 22, 2013

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701

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i hate homework.....i dont get this

Guest Jan 22, 2013

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770

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SOY SEXY? CUANTO POR CIENTO???

Guest Jan 22, 2013

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705

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ハイヒール通販

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Guest Jan 22, 2013

Jan 21, 2013

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647

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small discrepencies

Given these three #s: (b) and (c) can be adjusted slightly, but (a) cannot. The sum of the three must equal 1.0 , and (b) * (c^2) must = a
If I round off (a) to .0431604 then the equation works beautifully. For example .431604+.7103444+.2464952= 1 ,and read more ..

Guest Jan 21, 2013

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606

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okorrumjs

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Guest Jan 21, 2013

Jan 20, 2013

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578

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UGG クラシックトール

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Guest Jan 20, 2013

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589

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ugg アウトレット

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Guest Jan 20, 2013

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620

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UGG クラシックミニ

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Guest Jan 20, 2013

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654

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ugg 通販

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Guest Jan 20, 2013

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606

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percentage

What percentage of 309.00. Is 127.38

Guest Jan 20, 2013

0

634

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trig

how do you simplify 1-(Sin t)^2/1-(Cos t)

Guest Jan 13, 2013

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