Science & Mathematics - 11 January 2007

2007-01-11 07:08:58 · 3 answers · asked by mr. phys man 1 in Engineering

I need help with polynomials. Please explain how to find the answer and please give the answer.

1. 14m^2 = 11mr - 15r^2

2. Write an explaination as to why most people would find it more difficult to factor 36x^2 - 44x - 15 than 37x^2 - 183x - 10

2007-01-11 07:08:18 · 2 answers · asked by Anonymous in Mathematics

i am doindg a project and some say there was some say there wasnt

2007-01-11 07:07:42 · 7 answers · asked by sara the blue dude 2 in Astronomy & Space

I want to know if getting good grades while in school would imply that someone will be successful while out in the workforce doing mechanical engineering work. Also assume the person has good communication skills, but is not the type of person that takes things apart and builds things for fun.

2007-01-11 07:07:04 · 10 answers · asked by wolfareeen 2 in Engineering

why do some doctors work in a hospital, while others work in their own practice? Do they do anything different? different working hours? Is one less bloodier?

2007-01-11 07:02:20 · 5 answers · asked by Anonymous in Medicine

"write the equation of the line that passes through the given point and is perpendicular to the given line. Write the answer in point slope formula."

" (-6, 3), y + 3x = -12 "

i know that the point slope formula is y = mx + b, but i dont know the equation on how to find out if its perpendicular

2007-01-11 07:02:10 · 5 answers · asked by Anonymous in Mathematics

The quotient of a number and 3 is the same as the difference of the number doubled and 5. What is the number?

2007-01-11 07:00:11 · 3 answers · asked by texas_diamond_diva 1 in Mathematics

Does taking ADD/ADHD drugs allow students to be more alert, focused, attentive and smarter? I mean even if one is perfectly healthy without any medical conditions requiring the use of such drugs?

2007-01-11 06:59:28 · 10 answers · asked by walexan 1 in Medicine

different races exist? surely the fact we all come from the same origions and yet aboriginees, europeans, africans and native americans differ in appearance from each other we have all evolved over 1000s or years to adapt to environment.

2007-01-11 06:58:07 · 14 answers · asked by fiddich59 2 in Biology

Find the vertex of the parabola which is the graph of the quadratic function y=-2x^2+4x+6

2007-01-11 06:56:22 · 6 answers · asked by haileybaby331 1 in Mathematics

Investors do not invest all of thier money in the investment predicted to be the best because it can be too risky. An investor holds shares in 3 independant companies, A, B, and C. An analyst predicts the probability of profit increases for each to be:
A - 0.70
B - 0.50
C - 0.65

What is the probablility at least one will show a profit increase in terms of %?


I just don't get it.

2007-01-11 06:55:31 · 4 answers · asked by gg 4 in Mathematics

Two trains A and B are initially 100 miles apart facing each other on the same train track. Unfortunately the trains are headed toward each other, and each is going at a constant speed of 50 miles per hour. A superfly starts on the front of train A, flies to train B, immediately turns around and flies back to train A, etc. The fly zigzags this way back and forth at a speed of 200 miles per hour until the trains collide. At the last second (fortunately) our fly moves away from the collision. How many miles does the super fly travel until the trains collide? (its OK to neglect the length of the train).

2007-01-11 06:53:56 · 3 answers · asked by Angelo's Mommy 2 in Physics

Can two parents whose blood type is O+ have a child whose blood type is O-?

2007-01-11 06:53:31 · 8 answers · asked by angelofdreams19881 3 in Medicine

If $400 is invested at the rate of 6% for one year, what will be the total value of the investment (the amount)?

2007-01-11 06:53:19 · 1 answers · asked by kay 1 in Mathematics

By completing the square find the vertex form of the quadratic function y=x^2+7x+12

2007-01-11 06:51:51 · 3 answers · asked by haileybaby331 1 in Mathematics

Dad's age is equal to the sum of Laura's, Jeri's and Theresa's ages. If Jeri is 4 years older than Theresa and 3 years younger than Laura, and Dad's age is 38 years, how old is Jeri?

2007-01-11 06:51:47 · 2 answers · asked by kay 1 in Mathematics

2007-01-11 06:51:39 · 6 answers · asked by mahesh d 1 in Biology

In a triangle, the measure of the second angle is twice the measure of the first angle. The third angle is equal to the sum of the other angles. What is the measure of the third angle?

2007-01-11 06:51:11 · 3 answers · asked by kay 1 in Mathematics

2007-01-11 06:50:28 · 1 answers · asked by CelticMoonGoddess 2 in Mathematics

2007-01-11 06:49:20 · 6 answers · asked by camp.rick 1 in Other - Science

Is it important?

2007-01-11 06:48:29 · 4 answers · asked by Link 5 in Physics

Evaluate 10^log-a+log(base 3)3^-a. give an exact answer. no calc. please show work.

2007-01-11 06:45:09 · 2 answers · asked by Anna 2 in Mathematics

By completing the Square we can change any quadratic function of the form y=ax^+bx+c into a quadratic function in vertex form

2007-01-11 06:44:33 · 4 answers · asked by haileybaby331 1 in Mathematics

2007-01-11 06:43:33 · 2 answers · asked by Anonymous in Engineering

Find exactly: 2 sin 45˚ + 3 sin 135˚

2007-01-11 06:43:00 · 3 answers · asked by thomasgraham880 1 in Mathematics

2007-01-11 06:42:11 · 5 answers · asked by Bud 1 in Zoology

2007-01-11 06:40:55 · 4 answers · asked by M.K 2 in Mathematics

...is this true?

2007-01-11 06:34:51 · 7 answers · asked by Anonymous in Astronomy & Space

Miles and meters, I have a school project

2007-01-11 06:31:44 · 7 answers · asked by amethystdragonfaerie 2 in Geography

2007-01-11 06:28:12 · 5 answers · asked by Evilbunnyfarts 2 in Medicine