Mathematics - 25 October 2007

Simplify the expression by using the properties of rational exponents. Assume all variables represent positive real numbers. Express the final answer using positive exponents only.

8b^−1/3 divided by b^2/3


Is the answer 8b or is it 1/8b?

2007-10-25 17:32:37 · 4 answers · asked by DoWHATiDO 3

tell bee.

2007-10-25 17:32:06 · 7 answers · asked by babiifaceboo12 1

A statistics professor gives a surprising quiz consisting of 10 true/false questions and states that passing requires 6 correct responses. Assume that an unprepared student adopts the questionable strategy of guessing for each answer.
Find the probability that the first 6 responses are correct and the last 4 are wrong.

2007-10-25 17:26:16 · 5 answers · asked by austin 1

I need the square root for the fraction 1/3 (one over three). If anyone knows the answer can you please help me! I need it as soon as possible!

2007-10-25 17:23:48 · 8 answers · asked by raspberry 1

HELPPP MEE!
NOWW!

2007-10-25 17:22:36 · 5 answers · asked by babiifaceboo12 1

How do I do this?

Simplify the expression by using the properties of rational exponents. Assume all variables represent positive real numbers:

(n^1/2)^10

2007-10-25 17:19:43 · 3 answers · asked by DoWHATiDO 3

Can someone help show me how to use half-angle identities to evaluate tan(pi/16)? Thanks.

2007-10-25 17:18:02 · 3 answers · asked by lawllerzies 2

http://i40.photobucket.com/albums/e215/xxs3xp1stolxx/module%20709/Picture6.png
http://i40.photobucket.com/albums/e215/xxs3xp1stolxx/module%20709/Picture7.png

2007-10-25 17:15:38 · 2 answers · asked by Anonymous

what two-digit number is equal to three times the product of its digits????????

thanks if u helped
first answer = BEST ANSWER!
good luck

2007-10-25 17:05:07 · 4 answers · asked by arggg 2

http://i40.photobucket.com/albums/e215/xxs3xp1stolxx/module%20709/Picture7.png

2007-10-25 17:02:51 · 2 answers · asked by Anonymous

If f(x)=1/x and the inverse of f(x) is called g(x).

Find the value of g(-1/3).

x

-1/3

1/3

-3

undefined

2007-10-25 16:55:40 · 1 answers · asked by Anonymous

A graph of | 3y + 4 | < 13 would show

dots on -5 and 3 and a line connecting them

circles on -5 and 3 and a line connecting them

dots on -5 and 3 and arrows going outward

dots on -3 and 5 and arrows going outward

None of these

2007-10-25 16:54:40 · 1 answers · asked by Anonymous

Using each of the following scales, find the dimensions in a blueprint of an 8 ft-by-12ft room.

1 in.:2ft and 1 in.:4 ft.

please help me and explain how to do this! I really need this grade and would appreciate your help!

2007-10-25 16:53:15 · 4 answers · asked by Anonymous

The number 3002.05 can be written as 3 * 10^3 + 2 * 10^ (x) + 5 * 10^(y).

Given that x and y are integers, find the values of x and y.

ans is x = 0, y = -2

Please show me your workings clearly pls..thks

2007-10-25 16:50:36 · 3 answers · asked by Anonymous

y is directly proportional to x^2.
x is increased by 100%.
Find the percentage increase in y.

The ans is 400%

Please show me your workings and explain cos I don't understand..thanks!

2007-10-25 16:45:47 · 4 answers · asked by Anonymous

Name the shaded area..


http://mylovemylove.angelfire.com/venn/


Get ten points. :)

2007-10-25 16:45:38 · 8 answers · asked by Anonymous

find Int(Int) x dA over region D, where D is the region in the first quadrant that lies between the circles x^2 + y^2 = 4 and x^2 + y^2 = 2x

2007-10-25 16:44:54 · 2 answers · asked by Professor 1

can you please do it step by step. we have a test tomorrow on this and i still don't really understand how to do it. i missed the day of notes.

2007-10-25 16:32:07 · 5 answers · asked by Angel*Eyesz 3

Q. In three games Sherry's bowling scores were 109, 98, and 135, ressspectively. What was her total score for all three games? Use a "some and some more" pattern.
A. 342 Points
Q. What is the product of nine hundred ninteen and ninety?
A. 82080
Q. How many years were there from 1886 to 1986
A. 100 years
Q. List the factors of 28.
A. 1,2,4,7,14,28.
Q. Sal is 8 inches taller than Sammy. If Sal is 63 inches tall, how tall is Sammy? Use a "larger-smaller-difference" pattern.
A. 55 inches.
Q. 432 divided by 4
A. 108
Q. 423 divided by 6
A. 70
Q. 243 divided by 8
31 R. 5
Q. 2001 divided by 4
A. 500 R. 1
Q. 1020 divided by 10
A. 102
Q. 420 divided by (42 divided by 6)
A. 60
Q. Round 468 to the nearest hundred
A. 5
Q. 4657
+ 285
1223
A. 6165
Q. 3165
- 1635
A. 1430
Q. $10.00
- $08.93
A. $02.07
Q. 324
+ 56
17
73
25
19
A. 214
Q. 436
x 70
A. 29530
Q. $8.57
x 7
A. 60.99
Q. 600
x 900
A. 540000

2007-10-25 16:30:39 · 18 answers · asked by no 3

the rest of that sentences and the initial height .
If a rock is thrown upaward with an intiail velocity of 32 feet pesecond from the top of a 40 foot building, write the height equatio using the information.

2007-10-25 16:29:14 · 1 answers · asked by Jennifer G 1

I do NOT understand how to do this.
I can't really explain how it is written, I'll do my best:

^4...square root...10^3

The solution is suppose to be 5.6234
HOW DO YOU GET THIS?

2007-10-25 16:25:11 · 2 answers · asked by DoWHATiDO 3

The Question is:
What is the value of lim((x + "delta" x)^3 - x^3)/ "delta" x
if x=3
The answer is 3x^2 and thus 27.
How do you arrive at this answer? Can someone explain to me how to solve these kinds of questions?

2007-10-25 16:25:10 · 7 answers · asked by Anonymous

-5x + 6 <= -9 (Remember >= means greater than or equal to)

a. Solve the inequality showing all steps and

b. Describe the graph. (Guide: open or closed circle on what number, arrow to the right or left.)

2007-10-25 16:24:35 · 20 answers · asked by Anonymous

y= sec(tanx)

2007-10-25 16:22:40 · 1 answers · asked by Anonymous

currently,you have $60 and your sister has $135. You decide to save $5 of your allowance each week, while your sister decides to spend her whole allowance plus $10 each week. How long will it be before you have as much money as your sister?
1. write an equation for the model.
2.solve the equation and answer the question

2007-10-25 16:18:01 · 2 answers · asked by Anonymous

2007-10-25 16:15:04 · 7 answers · asked by Zetsumei Ongaku 2

1+1 the best answer gets the points!

2007-10-25 16:11:41 · 19 answers · asked by Rob 2

Which of the following is NOT an example of an Irrational Number?

4.2

square root of 5

5.212573...

pi

2007-10-25 15:53:59 · 2 answers · asked by Anonymous

you bought two antique lamps for the $50 each. Later you offered $60 for one and sold it. When you saw a duplicate being sold for more you changed your mind and bought it back for $70. you then sold it for $80. the first one didn't sell at all so you reduced the price by 10% below what you originally paid and managed to get rid of it. did you make or lose money on the deal and how much ??

2007-10-25 15:52:41 · 6 answers · asked by Nelson Z 1

The Question is:
What is the value of lim((x + "delta" x)^3 - x^3)/ "delta" x
if x=3
The answer is 3x^2 and thus 27.
How do you arrive at this answer? Can someone explain to me how to solve these kinds of questions?

2007-10-25 15:49:47 · 2 answers · asked by Anonymous