Mathematics - 6 December 2007

can someone give me the steps to the solution of this equation. In the book the solution is done through dividing the equation by (x+1). Why?

thank u

2007-12-06 06:46:11 · 3 answers · asked by Fellow 1

2sin^2(x) + cos(x) - 1 = 0

thanks!

2007-12-06 06:41:02 · 1 answers · asked by Nate 6

2007-12-06 06:38:45 · 9 answers · asked by Anonymous

change exponential expression to an equivalente expression involving logarithm e^x=23

2007-12-06 06:32:45 · 4 answers · asked by etienne b 1

Find the distance between ( 6, 6) and the line y=2x+4

2007-12-06 06:31:28 · 3 answers · asked by Flirty G 1

log(subscript)3 (normal)x + 4log (subscript)x (normal)3 = 5

2007-12-06 06:17:36 · 8 answers · asked by Anonymous

2007-12-06 06:16:58 · 3 answers · asked by Beacher 7

i need this by monday . 718,900
2. 0.0035

3. 9,364
4. 0.009

5. 12,000
6. 83,470

7. 0.0025
8. 990,000

9. 2,922
10. 0.006

11. 0.05
12. 0.24

13. 368,500
14. 3,981

15. 300,000
16. 0.002

17. 60,000
18. 743,200

19. 7,754
20. 0.059

21. 3,475
22. 930

23. 0.001
24. 0.0016

25. 4.445 × 105
26. 3.65 × 104

27. 8.541 × 103
28. 1.5 × 10-2

29. 4.4 × 105
30. 6 × 10-2

31. 9.2 × 105
32. 2.9 × 105

33. 6.982 × 103
34. 3 × 10-3

35. 2.2 × 10-1
36. 3.793 × 103

37. 6.24 × 104
38. 2.6 × 105

39. 6.4 × 10-3
40. 2.8 × 10-3

41. 4.48 × 105
42. 3.057 × 103

43. 8 × 10-2
44. 2.4 × 105
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 and 43 are supposed to be written in scientific notation and all the others in standard form or in other words in numbers

2007-12-06 06:16:01 · 4 answers · asked by Anonymous

A plane flew 600 miles with a 30mph tailwind. On the return trip, the plane flew 600 miles into a 30mph headwind. If the total flying time was 4.5 hours, how fast does the plane fly in still air? PLEASE HELP!

2007-12-06 06:15:02 · 3 answers · asked by Scott 1

Is √2 /2 correct and why?

2007-12-06 06:11:58 · 7 answers · asked by Dr D 7

1. sqrt[18] + sqrt[300] - sqrt[243]
2. sqrt[25y^2z] +sqrt[16y^2z]
3. 4thrt[48]
4. sqrt[x^2+10x+25]

2007-12-06 06:11:07 · 1 answers · asked by coscha y 1

I am a little confused on how I should start this problem. I assume you use integrals but I don't know how. The problem is,
The velocity of a moving object at time t is given by v(t) = e^t/((e^t) +1) Find the position s(t) at time if s(0) = 0.

s(t) = ?

2007-12-06 06:09:59 · 3 answers · asked by Anonymous

Find the slope of the airplane's line of descent. Round to the nearest hundredth

Can someone help me i am no good at algebra pls

2007-12-06 06:08:14 · 2 answers · asked by redbone001 1

2007-12-06 05:56:49 · 5 answers · asked by Nicole S 1

find all exact real solutions x

thanks!

2007-12-06 05:56:47 · 5 answers · asked by Nate 6

There are 30 students in a classroom. What is the probability 2 of the 30 students will have the same birthday?

I need an explanation and whether it is a dependent event, independent event, inclusive event, or a mutual exclusive event.

2007-12-06 05:53:34 · 6 answers · asked by tyler_d101 1

anybody know any good and helpful websites that have shapes of parallelograms?

2007-12-06 05:52:36 · 3 answers · asked by soccerchika78 1

4x -5y = 2

3x +2y = 13

The sum of x and y is 5, but u must show the following steps..;o)

2007-12-06 05:52:35 · 7 answers · asked by Anonymous

Valuable coins kept by the Treasury at Fort Knox are stored in sealed identical chests. Each chest has two compartments, filled with equal amounts of gold coins and equal amounts of silver coins (but numbers of gold and silver coins are different).

According to the books kept by the Treasury there should be 500,000,000 chests. But, alas, only according to the books. The audit revealed, that despite all inspected chests remained properly sealed, total amount of coins in all chests are:
327160698919750151 gold coins, and
981482103259250362 silver coins.

Apparently someone stole several chests full of coins.

2007-12-06 05:47:29 · 3 answers · asked by Alexander 6

y=-2/3x+4

2007-12-06 05:46:14 · 3 answers · asked by Maddy505 1

i need the step by step help... especially for the cube root of 256.... i don't get how to do those... what about the 8 root of 16 or 9 root of 64???

2007-12-06 05:36:23 · 2 answers · asked by Anonymous

I know that the answer is dy/dx = 6^x In x. I just do not understand the steps!
Thanks for ANY help!!!

2007-12-06 05:31:06 · 5 answers · asked by Anonymous

a boat leaves the entrance of a harbor and travels 27 miles on a bearing of north 82 degrees east. how many miles north and how many miles east from the harbor has the boat traveled?

2007-12-06 05:30:58 · 9 answers · asked by Anonymous

8b^3 -27

The answer is, 4b^2 +6b +9 , but u must show the steps.. ;o)

2007-12-06 05:27:04 · 2 answers · asked by Anonymous

I'm pretty sure it's one of these three:
Consecutive Interior Angles Converse Theorem, Corresponding Angles Converse Postulate, or the Alternate Interior Angles Converse Theorem.

2007-12-06 05:23:08 · 4 answers · asked by mike 1

I have no idea how the book is saying the answer is 27 plants. I keep getting 31. here is the word problem.

Ms. Black has one begonia plant. If she buys two begonia plants each year for every one she has, how many will she have in four years?

Explain!!

2007-12-06 05:21:40 · 6 answers · asked by olivia k 2

if sinA= -5/13 in QIII, and secB=5/3 in QI

that's supposed to be a neg. in front of the 5/13... obviously

thanks a lot for your help!

2007-12-06 05:21:34 · 1 answers · asked by Nate 6

A gym coach must select 11 seniors to play on a football team. If he can make his selections in 12,376 ways, how many seniors are eligible to play?

I am having troubles with this question. Can anyone help me? Thanks.

2007-12-06 05:16:07 · 4 answers · asked by Anonymous

Due to a lack of funding, the number of students enrolled at City College went from 8000 last year to 5000 this year. Find the percent decrease in enrollment. (Round to the nearest tenth of a percent, if necessary.)

A 160%
B 62.5%
C 37.5%
D 60%

David has $14,000 to invest. He invests $9000 in a mutual fund that pays 12% annual simple interest. If he wants to make at least $2200 in yearly interest, at what minimum rate does the remainder of the money need to be invested?

A 24.4%
B 21.4%
C 20.4%
D 22.4%

P = 2L + 2W; P = 30, W = 6

A 24
B 9
C 15
D 12

2007-12-06 05:06:54 · 8 answers · asked by April M 1

(3a + 4b - c) - (6a - 2b + c)

Please explain this to me and I'll give out 10 points for the best answer! woo.

2007-12-06 05:03:28 · 5 answers · asked by WHAT THE HELL 4