Mathematics - 20 June 2007

It goes 3x(squared)-39x= -126 and it asks Solve for x

How do I do this?

2007-06-20 03:45:18 · 9 answers · asked by brian_vendiola 1

can I have a few examples for this method?

2007-06-20 03:22:01 · 8 answers · asked by hisbaby1492 2

2square root 3 + square root 75+ 5 square root 27

3/x+2 = 5/x


square root x-4 +6=10


x^2-8x+6



x+1/16x * 4x^2/5x + 5

Please answer i have 15 min. no need to show work.

2007-06-20 03:18:43 · 2 answers · asked by Anonymous

Two pyramids are similar with a ratio of surface areas of 25:64, Find the volume of the second pyramid given the first has a volume of 250m^3.

thanks in advance.

2007-06-20 03:07:11 · 8 answers · asked by tochau 5

you have traveled 52km in 13 hours. What is your speed in kph?

2007-06-20 03:01:30 · 25 answers · asked by Grace 2

ok... 3/5 - 7/2x = 3/10

Steps please I got 3/35 and the answer is 35/3 ...so I flipped something somewhere..

2007-06-20 02:53:07 · 8 answers · asked by Shameless 3

You are now at your location. and you know your speed was 5.4kph. You took 7hours to complete. What distance have you covered?

2007-06-20 02:51:30 · 20 answers · asked by Grace 2

Your next location is 22km away and you will be travelling at 5kph. How long will it take you to get there? Answer in hours and minutes

2007-06-20 02:50:06 · 16 answers · asked by Grace 2

2007-06-20 02:40:55 · 6 answers · asked by v_vanessa0_0 2

2007-06-20 02:36:21 · 15 answers · asked by Anonymous

2007-06-20 02:30:51 · 23 answers · asked by Anonymous

. What is the slope of the roof to the nearest hundredth?

2007-06-20 02:30:03 · 4 answers · asked by Anonymous

(a) y = x + 4
(b) y = x – 7
(c) y = 4x + 11 (d) y = 4x – 4

2007-06-20 02:29:12 · 9 answers · asked by Anonymous

If the perimeter of the rectangle is 56 in., find the width of the rectangle

2007-06-20 02:28:28 · 7 answers · asked by Anonymous

(5, 12) and (7, 10).
Thank you for any help you can give

2007-06-20 02:27:44 · 8 answers · asked by Anonymous

If the student randomly guesses at 20 multiple choice questions, find the probability that the student gets exactly four correct. Each question has four possible choices. How do you calculate this!!

2007-06-20 02:20:03 · 8 answers · asked by Steph 1

I have a graph that plots data from materials testing. I am a summer intern an my supervisor gave me the job to process and enter the information in an experimental data base. We have a metal bar that is placed in a device that rotates the bar while applying a certain stress to it. I dont run the machine I just look at the reports so the info I have is what they give me. the Y axis represents the stress applied. the x-axis represents the revolutions. the points are where the material broke at the given stress. so my points are (3498000,90) (6271600,85) (21939300, 80) (62070100,75) (87358800,70). just to be sure I am clear 3498000 is how many revolutions it took for the material to break at 90 KSI. So i need to find out approximately what stress would break the material @ 10,000,000 revolutions and 100,000,000 revolutions.

2007-06-20 02:07:16 · 4 answers · asked by Spencer D 3

without using the ruler...or any measuring instrument...

2007-06-20 01:53:44 · 10 answers · asked by JK 2

this question is related to the maths subject
i have tried " [9-7-8+6]+[5-3-4+1][-1]" but this not the correct way.

2007-06-20 01:49:53 · 6 answers · asked by Anonymous

16. |-7| < -3 True False

2007-06-20 01:43:31 · 7 answers · asked by mikepaul90 1

My lesson says if you multiply a radical by itself the answer is the radicand. So the square root of 3 times the square root of three = three. But is 2 times the square root of three the same thing? Or six? Or what? I don't understand that because the 2 isn't a radical, its a plain 2.

Actually the entire problem is: Rationalize the denominator of 2 over the square root of 3. So I multiply both by square root of three, but not sure of how to do the top.

Thanx...

2007-06-20 01:41:27 · 7 answers · asked by Maria S 3

If 10 persons meet at a reunion and each person shakes hands exactly once with each of the others, what is the total number of handshakes?

i have two solution in my head i think ...i am not sure though

(a) 10C2

(b)9*9*....10 times =10*9

i dont know who is correct ?

whats the solution ?

2007-06-20 01:31:44 · 10 answers · asked by calculus 1

Differentiate the function.

2007-06-20 01:30:30 · 3 answers · asked by capslock077 1

2007-06-20 01:22:15 · 5 answers · asked by Anonymous

2007-06-20 01:19:10 · 5 answers · asked by Zandra T 1

2007-06-20 01:07:53 · 16 answers · asked by tublu 1

3/4 -5(4x -3) = 110

2007-06-20 00:57:00 · 8 answers · asked by Anonymous

2007-06-20 00:49:22 · 3 answers · asked by JYOTI S 1

2007-06-20 00:46:20 · 8 answers · asked by JYOTI S 1

3/4x -6(2-5x) = 120

2007-06-20 00:36:26 · 8 answers · asked by Anonymous