Science & Mathematics - 2 August 2007

Please solve this problem: Find the area of a regular hexagon with sides of 4 cm. I know that I need to use the Pathagorean Theorem to find the length of the radius or the apothem. However, I do not know if I can assume that the length of the radius is equal to one side of the hexagon, which would be four. Help!!!!

2007-08-02 15:15:09 · 5 answers · asked by math deficient 1 in Mathematics

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Calculus>Derivative. Is there a technique to easily find the derivative?

Our teacher in calculus said that there is a shorter technique to find the derivative of F, but he didn't teach it yet and he said that in our quiz we should use the long method. I should learn the short technique in order to check if my answer is correct because the long method is so complicated that if would occur any mistake it would make my answer wrong. So please do help me.

Can a scientific calculor solve derivative?
and if yes. How?If not just show the technique

for example find the derivative of F is F(x) = 3x^2 + 12

2007-08-02 15:08:51 · 4 answers · asked by Patricia 2 in Mathematics

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Weenieheads.?

How are the nucleotide monomers connected to form a polynucleotide?

a. hydrogen bonds between complementary nitrogenous base pairs
b. ionic attractions between phosphate groups
c. disulfide bridges between cysteine amino acids
d. covalent bonds between the sugar of one nucleotide and the phosphate of the next
e. ester linkages between the carboxyl group of one nucleotide and the hydroxyl group on the ribose of the next

Which of the following would be a major component of the cell membrane of a fungus?

a. cellulose
b. chitin
c. cholesterol
d. phospholipids
e. unsaturated fatty acids

2007-08-02 15:08:10 · 1 answers · asked by Anonymous in Biology

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how can i master math such as algebra?

2007-08-02 15:03:03 · 4 answers · asked by Alberta S 1 in Mathematics

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What's the name from rain that evaporates before it reaches the ground?

2007-08-02 14:58:09 · 9 answers · asked by Pepper 4 in Weather

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what is this formula?

f(x) - f(a)/x - a
what is the name of this formula, and please give a simple example. thanks!!!

2007-08-02 14:57:43 · 7 answers · asked by Anonymous in Mathematics

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chemistry homework questions-need help?

What amount of 0.50 mol/L NaOH is required to titrate 10.0 mL of a 2.00 mol/L H2SO4 solution?
How many millliliters of commerical sulfuric acid are needed to prepare 200mL of a 3.00 Eq/L H2SO4 solution if the percent assay of the commercial reagent is 96% and its specific gravity is 1.85?
What volume of concentrated latic acid (HC3H5O3) with a specific gravity of 1.22 and a purity of 86.0% is needed to make 250mL of a 3.00 mol/L latic acid solution?
Determine the number of equivalents of H2SO4 present in 450 mL of 3.00 mol/L H2SO4 solution?

2007-08-02 14:56:16 · 2 answers · asked by prime7 2 in Chemistry

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Does i^i^i^i^... converge to a real number?

That's √(-1) to the √(-1) to the √(-1), etc., with infinite exponents.

2007-08-02 14:53:37 · 7 answers · asked by Anonymous in Mathematics

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Why does our fingers fit nicely in our nostrils...?

I know its gross to pick your nose but ..think about it how the human body fits into another human body...its amazing..yes I am that bored...so why is this ...thanks

2007-08-02 14:46:47 · 8 answers · asked by Anonymous in Biology

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Why are St. Paul and Mineapolis called the twin cities?

I was just wondering because I didn't get it.
And I asked my mom and her room mate and they didn't know eaither.

2007-08-02 14:46:25 · 3 answers · asked by Kelsey[[Kup-Kake]] 2 in Geography

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how many minutes fe3+ if 1.870A to plate out 2.10g Fe?

2007-08-02 14:39:01 · 1 answers · asked by Anonymous in Chemistry

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Solving for Parabolas?

Specify the focus, the directrix, and the focal width as well as the vertex of the following parabola

y + square root 2 = [x-(2square root 2)]^2

any and all help is very much appreciated...thank you =)

2007-08-02 14:34:08 · 5 answers · asked by Jessica H 1 in Mathematics

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Why does the three-quarter moon look...?

Why does the three-quarter moon look convex? If the shadow of the earth is the shaded part of the moon, shouldn't it be concave, the same as the one-quarter moon looks? Thanks!

2007-08-02 14:29:07 · 7 answers · asked by blooming chamomile 6 in Astronomy & Space

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What causes purple lightning?

2007-08-02 14:27:53 · 6 answers · asked by Jessica F. 1 in Weather

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Asample of SO2 gas which weighs 0.81 grams has a volume of 1.20 liters when collected at 25 degrees celisus.?

what would be the pressure of the gas sample?

2007-08-02 14:27:48 · 3 answers · asked by Anonymous in Chemistry

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Trigonometry question... sin, cos, tan?

Sin (theta) = -4/5; Cos (theta) = 3/5; Tan (theta) = -4/3. I need to know how to get (theta) or the degrees.. the answer is 306.9 degrees but I need to know the steps.. thank you for the help!

2007-08-02 14:26:21 · 4 answers · asked by izzie 1 in Mathematics

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