Math Student Help

Dymond lookin beautiful as usual on her B-Day…

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La Fraction in Bratislava (Randal club)

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A simple mistake during a mathematical calculation leads to devastating consequences.

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Use an apostrophe with words to show possession or when using contractions. For the word “it,” do not use an apostrophe to show possession, but do use an apostrophe if it is a contraction. Learn about using apostrophes for plural words that also express possession with information from a writer and English tutor in this free video on grammar and punctuation.

Expert: Heather Kamins
Bio: Heather Kamins has a Master of Fine Arts in creative writing from Mills College in Oakland, Calif. She has taught and tutored English composition at Mills, as well as at the College of Alameda.
Filmmaker: Dimitri LaBarge

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Find out how many ways things can happen.

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Want to help your first grade child with their math lessons? Teach your kid the subtraction tables with expert tips in this free education video.

Expert: Matt Moskal
Bio: Matt Moskal is a free-lance artist with a BA in Elementary / Special Education. He has taught Kindergarten through 6th grade in the Philadelphia School District since 2003.
Filmmaker: Christopher Rokosz

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Access full lesson containing this video at: http://www.yourteacher.com/algebra2/thequadraticformula.php Students learn to solve quadratic equations in the form ax^2 + bx + c = 0 using the quadratic formula, which states that x = -b plus or minus the square root of b^2 — 4ac over 2a. For example, to solve the equation x^2 — 3x — 8 = 0, since a = 1, b = -3, and c = -8, the quadratic formula states that x = 3 plus or minus the square root of (-3)^2 — 4(1)(-8) over 2(1). Simplifying on the right side of the equation, x = 3 plus or minus the square root of 9 + 32 over 2, or x = 3 plus or minus the square root of 41 over 2, which is the final answer. Note that students also learn to derive the quadratic formula using completing the square in the first example problem in this lesson.

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Sorry my question might sound a little confusing…
but what i mean is, say you have a reed in a pond. The part of the reed that sticks out above water looks straight, but the part that is underwater looks diagonal. A lot of straight things make this illusion when you put them in water, even a straw in a cup of soda.
What is this illusion called? and does it use any geometry?

The phenomenon is called "refraction."

http://en.wikipedia.org/wiki/Refraction

Here is the fraction: G/1.9 = 10
How do you solve for G when its in a fraction?

First you want to get rid of the fraction on the left side by multiplying it out, which can only be done by multiplying BOTH SIDES.

(G/1.9)x(1.9) = (10)x(1.9)

1.9 on the left side cancels out and you than get

G = 19

I have a test coming next next week on fractions and I want to know how you add, subtract, multiply and divide fractions? I also want to know about LCD’s and those sorts of things. What if the denominator is not alike? What do I do? Thanks to all who tried.

Add and subtract:
First the fractions must have the same denominator. Then add or subtract their numerators.

Multiplication:
Multiply numerators by numerators, multiply denominators by denominators.

Division: (The number that is divided is called the dividend. The number that divides the dividend is called divisor.)
Invert the divisor and multiply the two fractions as described above.

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