Mathematics - 8 November 2007

do you play video games?

2007-11-08 07:17:19 · 8 answers · asked by Anonymous

A man launches his boat from point A on a bank of a straight river, 4 km wide, and wants to reach point B, 4 km downstream on the opposite bank, as quickly as possible. He could row his boat directly across the river to point C and then run to B, or he could row directly to B, or he could row to some point D between B and C and then run to B. If he can row 6 km/h and run 8 km/h, where should he land to reach B as soon as possible? (We assume that the speed of the water is negligible compared to the speed at which the man rows.)

2007-11-08 07:14:00 · 2 answers · asked by syem64 2

2007-11-08 07:09:26 · 2 answers · asked by simonkf2002 1

a. 1.1202
b. -1.9005
c. -0.2800
d. 2.1418

HELP ME PLEASE!

2007-11-08 06:56:47 · 5 answers · asked by Hollywood614 2

helpppppp

2007-11-08 06:56:31 · 1 answers · asked by hOLLiSTER gURLiE! 1

like 1/x + 3/y = 3/4
4/x - 2/y = 2.

Please, help me on how would you solve that equation I have no idea how to.

2007-11-08 06:50:17 · 5 answers · asked by John E 1

Its a fraction.. is it < or >

6/11 7/10

6/11 < 7/10 or 6/11 > 7/10

2007-11-08 06:44:33 · 6 answers · asked by mistameter8292 1

a. log(9) 54
b. 54
c.6
d.486

This ? really has me stumped!

2007-11-08 06:43:48 · 7 answers · asked by Hollywood614 2

Find a whole number so that:

A=13, y=2

When you divide this number by 131 the remainder is Y,
When you divide this number by A the remainder is 7.

2007-11-08 06:28:33 · 7 answers · asked by irish dubliner 2

What is the derivative of the square root of x?

√(x)

2007-11-08 06:21:36 · 5 answers · asked by Anonymous

1
∫ ln(x) dx
0

2007-11-08 06:19:09 · 2 answers · asked by A4life2k4 1

5
∫ x^-1/2 + (5-x)^-1/2 dx
0

2007-11-08 06:18:30 · 2 answers · asked by A4life2k4 1

2
∫ dx/(4+x^2)
- infiniti

2007-11-08 06:17:52 · 1 answers · asked by A4life2k4 1

A boat leaves a dock at 3:00 P.M. and travels due south at a speed of 20 km/h. Another boat has been heading due east at 15 km/h and reaches the same dock at 4:00 P.M. How many minutes after 3:00 P.M. were the two boats closest together?

kinda lost on this one

2007-11-08 06:16:15 · 2 answers · asked by syem64 2

What is the probability that 25 out of 2000 women cannot have children if 10 out of 1000 cannot?

2007-11-08 06:15:19 · 3 answers · asked by star_wisher86 1

Regional parts

Each vertex of a triangle is joined by straight line to six points on the opposite side of the triangle. no three of the joining lines pass through the same point. Into how many regions do these 18 lines divide the interior of the triangle

2007-11-08 06:09:44 · 2 answers · asked by jennifer w 1

Suppose X and Y have joint density f(x,y) = e^(-x-y) for x,y > 0. What is the covariance of X and Y?

2007-11-08 05:49:00 · 2 answers · asked by cornzxo1 1

it's been so long that i've done these type of problems. please show the steps. also, 3 - 2 3/4

2007-11-08 05:47:04 · 6 answers · asked by Papi Tony 3

2007-11-08 05:43:56 · 2 answers · asked by Cece jara 1

2007-11-08 05:43:46 · 2 answers · asked by Anonymous

a. <1 = 79, <2 = 101

b. <1 = 40, <2 = 140

c. <1 = 40, <2 = 150

d. <1 = 79, <2 = 111

2007-11-08 05:38:09 · 5 answers · asked by Anonymous

How do you do the following:

1) ∫ x² * e^(px) dx
2) ∫ x² * e^(-px) dx

2007-11-08 05:36:36 · 3 answers · asked by cornzxo1 1

solve : x^ - x - 20 = 0

i have:
(x - 5) (x +4)
x - 5 = 0 or x + 4 = 0
so x =5 or x = -4

use your results to solve:
(2t + 2/t) ^ - (2t + 2/t) - 20 = 0

i have:
2t + 2/t = -4 or 2t + 2/t = 5
2t^ + 2 + 4t = 0 or _________
2t^ + 4t + 2 = 0 or 2t^ - 5t + 2= 0
(t ) (t ) =0 or (t ) (t )


can someone tell me where i'm going wrong and help me fill in the blanks plz? thanks! :)

2007-11-08 05:25:39 · 5 answers · asked by plasticbag 2

and has to share 1/4 of those bribes with the mayor.

FBI determined that monetary transactions between the mayor and the judge are conducted by court clerk who passes enevolopes stuffed with cash, who also blackmailed both officials into paying him too. The mayor has to pay 1/6 of money received in each envelope from the judge, and the judge has to pay 1/8.

FBI also managed to obtain search warrant and dug up a chest packed with $500,000 cash in clerk's garden.

What combined amount of money was payed in bribes in the town?

2007-11-08 05:16:35 · 2 answers · asked by Alexander 6

Using factoring I solve this so that x=0 and x=3pi/2. Once I get to this point I'm unsure what to do. I'm told to put the x value in place of sin x and solve but I can't see an example of this. Additionally I'm not sure how to finish solving, I understand that I should get 4 answers because each x value is added to 2pi.

Can someone show me the solution by replacing sin x with the values.

2007-11-08 05:14:53 · 1 answers · asked by Krys F 1

2007-11-08 04:55:10 · 6 answers · asked by earlynightmare 1

2007-11-08 04:49:26 · 5 answers · asked by vivek 1

In an x-y coordinate system the point P is (0,-30). The polar coordinates of the point P are...

How would I go about finding this out. Thanks.

2007-11-08 04:47:49 · 4 answers · asked by Shivers20 2

2007-11-08 04:38:15 · 10 answers · asked by Anonymous

y+x=4
y=3x^2+2

help!

2007-11-08 04:24:18 · 4 answers · asked by slash_rocks s 2