Mathematics - 25 June 2007

I need to find the derivative of x^x based on the definition of derivative. Using the limit as h->0. (f(x+h)-f(x))/h I know the derivative based solely on information but i need the step by step derivative based on the definition of derivative taking the limit when h goes to zero. Any help?

2007-06-25 15:03:22 · 6 answers · asked by Chris K 1

28.5

:::Practice Problems:::

Please answer the following multiple choice questions about the area of polygons and circles. When you are satisfied with your answers, click the 'turn in your test' button to submit your work.


1: Find the area of a triangle with base length 40, height 25, and leg 1 length 30.
32.5
400
500
600


2: Find the area of a rectangle with a diagonal of 13 and longer side of length 12.
30
60
144
156


3: Find the area of a trapezoid with base length 28, height 10, top side 8, and side lengths 12 and 15.
63
180
360
1120


4: A hole is being cut out of a square piece of carpeting with side length 18 feet, for a column 6 feet in diameter. How many square feet of carpeting are there after the piece for the column has been cut out? Round your answer to the nearest tenth.
108.0 sq.ft.
211.0 sq.ft.
295.7 sq.ft.
324.6 sq.ft.


5: A yield sign is an equilateral triangle with 36 inch sides. How many square inches of material are needed to make the sign? Round your answer to the nearest tenth of a square inch.
108.0 sq.in.
324.6 sq.in.
561.2 sq.in.
648.0 sq.in.


6: The area of a trapezoid is 28 square feet. The bases are 5 feet and 9 feet. What is the height of the trapezoid?
4 ft.
5 ft.
6 ft.
9 ft.


7: The school band is selling pennants. Each pennant is cut in the shape of an isosceles triangle with base of 1 foot and height of 4 feet. How many square feet of fabric are needed to make 200 pennants (assuming no waste)?
100
200
400
800


8: Find the area of parallelogram ABCD where AB || CD, AB = 21, AD = 32, and height = 24.
504
672
768
822


9: Tom plans to make strawberry shortcake to take to a party. The recipe calls for a 10 inch diameter round pan. Tom only has an 8 inch square pan, a 9 inch square pan and a 10 inch square pan. Which pan comes closest in area to the one that the recipe suggests?
8 inch
9 inch
10 inch
12 inch


10: A 20 ft. by 15 ft. swimming pool is surrounded by a 2 ft. wide sidewalk. A fence on the edge of the sidewalk encloses the whole pool area. What is the area in square feet inside the fence?
300 sq.ft.
374 sq.ft.
456 sq.ft.
522 sq.ft.


11: What is the area in square feet of only the sidewalk in number 10?
156 sq .ft.
300 sq .ft.
374 sq .ft.
274 sq .ft.

2007-06-25 15:02:46 · 5 answers · asked by Ba'kon 1

solve B= 4V/N+4t for N.

2007-06-25 14:59:34 · 3 answers · asked by ashley_tisdale2006 2

I'm capable of dividing and doing quick addition, multiplication, square roots, and detect prime numbers without calculating anything. I sense a image like picture of the number out of what seems to be entagled static, which itself feels like nothing more than a poofy thing tat clouds my mind, and the number simply appears.
It's more of a feeling that each number has, and it's almost indescrible. My brain feels funny after doing anything relating to it.
It's not memorization, I wouldn't be asking this question if it was. Are there other people who are able to do this?

2007-06-25 14:39:53 · 5 answers · asked by Anonymous

I took calculus in college, but I forgot it all. Every mathematical dicipline seems to have important concepts, and I just want to know what some of the important concepts or calculus are.

2007-06-25 14:38:42 · 2 answers · asked by Anonymous

Solve 1/C=1/p+1/z for z.

2007-06-25 14:28:57 · 5 answers · asked by ashley_tisdale2006 2

please help i don't know how to solve this. i dont even understand this.. so please show a very detailed working so i can understand it. and if you know a site where i can learn all about this please do tell.. please..

let (a subs n) be the sequence defined by

a subs n = [ (n^2+8n+10) / (n + 9)]

where the [x] is the largest integer that does not exceed [x]. find the value of (the sum symbol: the one that looks like an E. well i t looks like an M rotated to the left by 90 degress.) oh and on top of the symbol is 30 and in the side there is (a subs n).

if you know the site where i can learn the basics for this stuff please tell me.. cuz its not making sense to me.

2007-06-25 14:27:18 · 3 answers · asked by quennie 1

A) Anually find the balance after 10 years.

B) Conituously, find the blance after 10 years.

2007-06-25 14:18:51 · 2 answers · asked by roninshinobix 1

Solve 1/F=1/w + 1/r for r

2007-06-25 14:17:44 · 13 answers · asked by ashley_tisdale2006 2

like this one.....=/

5x(2x-7)(x+1)

where do i start first??

2007-06-25 14:15:27 · 4 answers · asked by jenn_jennifer_genny 1

The serial number on an airplane consists of the letter N followed by five numerals, followed by two letters. How many serial numbers are possible?

2007-06-25 14:15:10 · 4 answers · asked by roninshinobix 1

2007-06-25 14:09:03 · 8 answers · asked by Anonymous

On a certain day 1/4 of the employees of an office were away on a vacation and 1/8 away on a official leave.If 270 were present, how many employees compose the office forced ?

2007-06-25 14:08:27 · 7 answers · asked by jonathanaljomargonzales 1

How do you take the squareroot of ln of a number, example
sqrt(ln(4))=?

2007-06-25 14:05:40 · 5 answers · asked by leo 6

Find all solutions by factoring.

x2 + 5x = 0

{5,0}

{-5,5}

{-5,0}

{0}

2007-06-25 13:54:00 · 11 answers · asked by Anonymous

Solve the equation by the zero-factor property.

x(x + 13) = 0

{-13, 0}

{-1, -13}

{1, -13}

{13, 0}

2007-06-25 13:46:41 · 7 answers · asked by Anonymous

Looking for some help with this. It falls under superposition and undetermined coeffiients.

y" + 4y = sint - cost

I got

1/3sint - 1/3cost

just wanted to see if im getting this right

thnx

2007-06-25 13:42:42 · 2 answers · asked by The Dude 3

What is the antiderivative of

e^ -3/5

please know what your doing, this is Calculus

2007-06-25 13:37:20 · 8 answers · asked by Anonymous

Log R -3 log T + 1/3 Log X

2007-06-25 13:31:39 · 7 answers · asked by roninshinobix 1

I have a large equilateral triangle inscribed with another equilateral triangle and inside that is a third equilateral triangle .
How does the area of the smaller triangle compare to the area of the large triangle?
Thank you

2007-06-25 13:26:14 · 3 answers · asked by sammythe2nd 1

An urn contains 5 balls, two which are marked $1, 2 balls$ 5, and one$15. A game is played by paying$ 10 for winning the sum of the amounts marked on two balls selcted randamoly from urn. Is this a fair game.

2007-06-25 13:19:57 · 2 answers · asked by Anamika 2

If two sides of a triangle are 11 and 15, which is not a possible length for the third side?

4

21

16

9

2007-06-25 13:08:07 · 14 answers · asked by Anonymous

If two sides of a triangle are 5 and 7, the third side could be

1

2

4

12

2007-06-25 13:07:23 · 3 answers · asked by Anonymous

http://i40.photobucket.com/albums/e215/xxs3xp1stolxx/32.jpg

2007-06-25 13:06:09 · 5 answers · asked by Anonymous

What is the slope of the line that passes through the points (3, -2) and (-1,0)?

negative one-half

one-half

2

-2

2007-06-25 13:05:18 · 5 answers · asked by Anonymous

After 1/8 of a ribbon is thrown away, the remaining part is cut into 2 pices whose lenghts are in the ratio of 4:5. If 9 inches of the original ribbon was thrown away, how many inches long is the shorter of the 2 reamining pieces of ribbon?

a. 21
b.28
c.30
d.35
e.42

2007-06-25 13:04:02 · 2 answers · asked by yous a loser! 1

Hey i need to kno how many Grams are in a QP(Quarter Pound)
Plz and Thanks in Advance

2007-06-25 12:57:05 · 5 answers · asked by Anonymous

Let Y ~ U(0,1).

a. Derive the distribution of the random variable W = Y2.
b. Derive the distribution of the random variable W = square root of Y.

2007-06-25 12:54:24 · 2 answers · asked by Anonymous

the equation of the line tangent to the curve y= 4 sqrtX at the point (4,8) is ??

show steps plz
thanks

2007-06-25 12:52:42 · 3 answers · asked by Mr. Rain 1

http://i40.photobucket.com/albums/e215/xxs3xp1stolxx/20.jpg

2007-06-25 12:46:47 · 1 answers · asked by Anonymous