Mathematics - 18 October 2007

(6 x 10¹)+(8 x 10°)+(1 x 10¯¹)+(3 x 10¯²)

2007-10-18 07:54:29 · 11 answers · asked by Anonymous

Trying to complete yet another Algebra homework assignment, and I am stuck on 4 problems. Would someone mind helping me solve the problems, and also explain why you did what you did? THANK YOU for your help! "Answers" has been a blessing when it comes to my Algebra homework!!! :o)

1. p^-5q^-4 / 9r^-3

2. (p^-4q / r^-3)^-3

3. (m^8n^-4)^2 / m^-2n^5

4. (wz^-5 / w^-3z)^-2

THANK YOU AGAIN TO ALL YOU MATH WHIZZES!!! :o)

2007-10-18 07:53:20 · 3 answers · asked by mrsdynamite 2

1/(√1 + √3) + 1/(√3+√5) + 1/(√5+√7) +…+ 1/[√(2n-1) +√(2n+1)] = 100

. Solve for n
. Find n for the same sum = L (instead of 100)
I'm in the Log Chapter. So I think think prob should be solve by using log.
Thanks for your help

2007-10-18 07:44:33 · 2 answers · asked by spykid1803 1

well heres one on my homework

x(x+2)
it tells me to expand it, Please help I don't understand it. Do i times the x * x and then x * 2?

to make = x (Tiny 2 after x) and then 2x

what happens when the sign is - awelll


help would be wonderful thankyou
Oh ime also 14, so try to be simple, thanks!

2007-10-18 07:29:24 · 4 answers · asked by Anonymous

please i need help

2007-10-18 07:28:40 · 6 answers · asked by consumer math help me 1

what do i do divide ???
1. a circle with a diameter of 12-inches is inscribed in a square. What is the area of the circle? What is the area of the square?

2. Amy has just learned to ride a bicycle. Her tires have a circumfrence of 28-inches. She made it 392 inches befor falling. How many revolutions did she make ?

3. A circle with a diameter of 5-inches is inscribed inside a square. What is the area of the circle? What is the area of the square?

2007-10-18 07:25:04 · 2 answers · asked by I walk,my walk & Talk,my talk 3

For the curves below verify that x'(0)=y'(0)=0 . Determine the derivative dy/dx at the point when t=0.

a.) x(t) = t^3 and y(t) = t^2
b.) x(t) = t^3 and y(t) = t^5
c.) x(t) = t^5 and y(t) = t^3
d.) x(t) = t^(3)-1 and y(t) = 2t^3

I have an exam tomorrow and this was a question on last years sample exam that was posted by my professor without solutions and I don't know how it's done. Please help!!

2007-10-18 07:23:32 · 1 answers · asked by Anonymous

2007-10-18 07:05:58 · 3 answers · asked by nileshshivom 1

what are the differences between t-tests and chi squares?

2007-10-18 06:50:28 · 4 answers · asked by Anonymous

I am just wondering if I got it right on the quiz.

2007-10-18 06:49:32 · 3 answers · asked by ilovesoccer 1

prove sech^2 x + tanh^2x =1 i know that sech = 1/cosh and i know what cosh and tanh equals with the e thing but how can you get them to cancel each other out?

2007-10-18 06:34:35 · 2 answers · asked by Dustin 1

2007-10-18 06:31:58 · 4 answers · asked by Anonymous

2007-10-18 06:26:59 · 4 answers · asked by Krys F 1

how can i make (1+cosx)/(1-cosx) be equal to (cscx + cotx)^2 ???????????????????????????

2007-10-18 06:26:05 · 4 answers · asked by Anonymous

2007-10-18 06:21:13 · 5 answers · asked by Anonymous

2007-10-18 05:57:40 · 5 answers · asked by donpierro 1

i have the number 172 which is 7% of a bigger number. how do i fugure out the bigger number knowing that 172 is 7% of it?

2007-10-18 05:52:30 · 9 answers · asked by snippi f 2

Fill in the missing information for the following trapezoids:
height = 28.9 m
b1 = 26.9 m
b2 = ________
area = 806.31 m^2

A 17.06 sq m
B 15 m
C 46 m
D 23 m
E 28.9 m
F 51 m

2007-10-18 05:41:15 · 3 answers · asked by Anonymous

Fill in the missing information for the following trapezoids:
height = ________
b1 = 20 cm
b2 = 21 cm
area = 205 cm2

A 17.06 cm
B 12.5 sq cm
C 26 cm
D 10 cm
E 28.9 cm
F 50 cm^2

2007-10-18 05:40:10 · 7 answers · asked by Anonymous

is 2x+3y=7 a linear and literal equation ( I belive it is)

y=2x-6 Is this true, false or open (I belive it is true)
16<2(x) Is this true, false or open if x=10 ( I belive this to be true)
a+4=8 Is this true,false or open if a=5 ( I think that this is false)
I am not understanding these any help would be greatly appricated

2007-10-18 05:27:37 · 4 answers · asked by Anonymous

2/x^6 divided by 4/x^2 can anyone please help

2007-10-18 05:25:58 · 11 answers · asked by chas_lynn2002 2

Need help!!! Thanks : )

2007-10-18 05:25:18 · 1 answers · asked by Anonymous

I am suppose to add and express my answer in simplest form x^2/x+10+9x-10/x+10 trust me when I say I am lost.

2007-10-18 05:21:41 · 10 answers · asked by chas_lynn2002 2

2007-10-18 05:21:31 · 3 answers · asked by Anonymous

2007-10-18 05:20:58 · 1 answers · asked by Unknown 1

What is the area of a regular octagon with a side of 6 cm?

A 178.06 sq cm
B 122.5 sq cm
C 216 sq cm
D 23 cm^2
E 173.82 cm^2
F 510 cm^2

2007-10-18 05:11:56 · 5 answers · asked by Anonymous

Calculate the area for each of the polygons below. If you do not know an equation to use, divide the polygon into other shapes to determine the area.

A regular heptagon with a side of 7 inches.
A 178.06 sq in
B 294.16 sq in
C 169.21 sq in
D 358.91 sq in
E 157.36 sq in
F 277.91 sq in

2007-10-18 05:07:43 · 2 answers · asked by Anonymous

2007-10-18 05:02:28 · 13 answers · asked by daniel l 1

and thanks so much for your help!

2007-10-18 05:01:25 · 12 answers · asked by Megan Thrift 1

here is a puzzle and Analysis is given below

http://i218.photobucket.com/albums/cc298/curseofgoldendragon/save-1.png

please note the green shaded area . i made that green .......because i had some problems there . i don't know how to read those and how to utilize them . whats the systemetic way to utilize these facts ? which one to use first ? there are 5 facts and i am in trouble what to take into.......how to decide that ?

Here is the Analysis solution

part1:
http://i218.photobucket.com/albums/cc298/curseofgoldendragon/t1.png

part2
http://i218.photobucket.com/albums/cc298/curseofgoldendragon/t3.png

2007-10-18 04:58:54 · 3 answers · asked by calculus 1