Science & Mathematics - 3 December 2007

ttyl tttyl

2007-12-03 05:23:19 · 2 answers · asked by Heavy Metal 2 in Botany

if f(x)= -5x^3-5x+4 then f(1)= -6

The tangent line approximation to the function f(x) at x=1 is L(x)=____________

Determine a value of x near 1 such that L(x)= -12.00 ___________

Use the tangent line approximation to estimate the value of f(1.15) __________________

2007-12-03 05:15:18 · 3 answers · asked by Anonymous in Mathematics

=).

2007-12-03 05:14:01 · 2 answers · asked by Colleen! 2 in Earth Sciences & Geology

This is going to be hard to describe without an image but I'll try my best. Imagine there is a parallelogram ABCD. AB is the slant length on one side and CD is the slant length on the other.
So BD is the top and AC is the base.

The base (AC) is 10cm. The slant length is 8cm. The perpendicular height from base to top is 7 cm.

What is the area of the parallelogram?
I think its 84cm squared but would like confirmation.

Now the harder part (at least for me). What is the perpendicular distance from AB to CD?
Does it just remain 12 (the base)?

2007-12-03 05:13:09 · 1 answers · asked by TheKingOfKnowledge 1 in Mathematics

solving equations with the Varible on Each side is the subject the question is -4c-11=4c=21

2007-12-03 05:11:39 · 2 answers · asked by Detevtive12 1 in Mathematics

This is a physics question.

2007-12-03 05:10:33 · 2 answers · asked by Frst Grade Rocks! Ω 7 in Physics

okay I just got my exam back and finals are around the corner and I missed the question on Ohm's law and only got half credit for the essay. The question was..Which of the following is correct according to Ohm's Law? A. I=R/V
B. Current is directly proportional to the resistance
C. R=V=1
D. The more intense the stimulus the more voltage changes.
Those are the answers the formula for Ohm's law is I=V/R
I put b. and got it wrong because Current is only inversely proportional to the resistance where current is directly proportional to voltage.
Anyways I believe I was told A. was the correct answer, how can this be? It makes no sense whatsoever. I was hoping someone could explain this to me or atleast explain why the other three are wrong mainly D.

I put this under biology because I wasn't sure it is for my Physiology class.

2007-12-03 05:06:57 · 5 answers · asked by littlemisscontroverse 6 in Biology

2007-12-03 05:05:27 · 1 answers · asked by shredder87 2 in Engineering

2007-12-03 05:04:43 · 5 answers · asked by Anonymous in Mathematics

When you kick a soccer ball (football) with the inside of your right foot, it curves from right to left. The same is true of a volley ball and tennis ball.

But when you do the same thing to a beach ball, it curves from left to right (opposite direction).

Can anyone explain why?

2007-12-03 05:04:21 · 6 answers · asked by Dr D 7 in Physics

2007-12-03 05:03:08 · 1 answers · asked by Anonymous in Mathematics

On March 19 the asteroid deviated from Polaris only slightly, while its visible size increased considerably. The astronomers announced that doomsday arrived.

Fortuantely astronomers were wrong. On March 20 the asteroid missed the Earth by mere 100 km.

Two days later astronomers said that right now they could not track the asteroid, because it was passing the bright disk of Sun, and was invisible.

What was velocity of the astroid with respect to the center of Earth at the closest approach?

2007-12-03 04:56:11 · 3 answers · asked by Alexander 6 in Physics

2007-12-03 04:54:11 · 7 answers · asked by shakelia 1 in Mathematics

i heard that the pyramids are lined up with the stars but thats my only thought about it?

2007-12-03 04:51:21 · 28 answers · asked by mattheweamer 1 in Astronomy & Space

I have the fear and it is ruining my life. I know spiders are harmless little creatures, they play their part in life by helping out with the fly problem, and I don't hate them. This is a serious question guys...I don't want to go under hypnotism but I will if there is no other way.
Any ideas how I can conquer the fear?

2007-12-03 04:49:53 · 5 answers · asked by Black Star Deceiver 6 in Zoology

2007-12-03 04:49:28 · 8 answers · asked by Anonymous in Medicine

A Bristish guy on Xbox live wanted to play somewhere in between 5pm-7pm GMT. Whatis that in central time here in the states?

2007-12-03 04:49:09 · 3 answers · asked by Dillon 1 in Geography

Hello,

Currently in calc we're learning about cylindrical and spherical coordinates.

One of the questions that I cannot figure out is finding the volume of a cylinder with height H and radius R using SPHERICAL coordinates not cylindrical. Assuming that phi is the angle in the xy-plane and theta the azimuthal angle from the z-axis. So the format would be ∫∫∫ p^2 sinθ dp dθ dφ . So I think the first integral; the limits of phi should be from 0 to 2π but the next two I don't know.

Any help would be appreciated

thanks

2007-12-03 04:46:59 · 2 answers · asked by Jason 2 in Mathematics

I am pricing them on ebay and am torn between the 4.5" and 6" reflector telescopes. He is not exaclty an ameture so i want to get him a good one. Can you still see the rings of saturn and any galaxies with the 4.5?

2007-12-03 04:46:51 · 8 answers · asked by omegalbee 1 in Astronomy & Space

2007-12-03 04:45:12 · 3 answers · asked by Boogie 2 in Mathematics

i have two questions....

(1) What makes one protein different from another protein in structure and shape?

(2)Are these molecules (above question) the result of anabolic or catabolic processes? Explain.

i have been on these two problems for TOO long.
please help me!

2007-12-03 04:41:43 · 3 answers · asked by sand_illusions 4 in Biology

What is the net force accelerating a 5.0 kg cannonball from rest to 150m/s [W], if the applied force acts for 0.05s?

2007-12-03 04:39:57 · 2 answers · asked by myname_isalbert 1 in Physics

2007-12-03 04:34:39 · 33 answers · asked by Anonymous in Zoology

Where do i plot my negative enlargements?
I have the question:
A) scale factor 1/3, about (6,2). B) Scale factor 1/2 about (6-9)
the shape for A is a 8 Sides letter T and the shape for B is a triangle...right angled one.
I really don't know how to start drawing my enlargement...where do i plot the points on the graph i'm really confused.

2007-12-03 04:31:43 · 2 answers · asked by Anonymous in Mathematics

By how many degrees the position of the sun shifts?

2007-12-03 04:31:37 · 5 answers · asked by Anonymous in Astronomy & Space

you know cuz i think religion and morals set boundaries

2007-12-03 04:31:02 · 6 answers · asked by Anonymous in Physics

8x^4/4x^3

2007-12-03 04:27:37 · 5 answers · asked by Anonymous in Mathematics

When NaCl dissolves in water, it dissociates into its constituent ions; of which are attracted to the polar moments of the water molecule. We know this because the solution conducts electrical currents. If a strong anode and a strong cathode were placed into the solution, would the ions (although partly attracted to the water itself) trend to move to the respectve anode, cathode?

Would the Na+ move to area of the solution with anegative charge, and the Cl- move to the opposite end of the solution? If this can be done, could one evaporate the water and be left with Na metal, and Cl2 gas?

or is the thought process by this totally wack. any help would be appreciated.

2007-12-03 04:25:32 · 2 answers · asked by Anonymous in Chemistry

When the flight patterns of these chemtrail releasing aircraft are investigated the FAA will claim that they have no flight schedule information on that particular craft in the sky at that time.

So it is a Government flight.

With so many of these chemtrails criss-crossing our skies can't any independent organization go up and take a direct sample right in the chemtail itself for analysis?

They are not contrails as those are short lived condensation.

These chemtrails stay all day and spread across the sky for hours and hours.

So, what are they exposing society to? What are we breathing? What is raining down on our bodies?

It is time we had real answers

2007-12-03 04:25:28 · 9 answers · asked by scottanthonydavis 4 in Weather

alright say last year I had 59 cars & this year I had 51 cars, I'm getting -13.4% am I right? how do I get me answer? thanks

2007-12-03 04:24:01 · 1 answers · asked by Anonymous in Mathematics