Mathematics - 17 October 2007

The equation of the line is (x-6)/3 = (y+2)/-6 = (z-2)/4. The equation of the ellipsoid is x^2/81+ y^2/36 + z^2/9 = 1.

2007-10-17 18:33:35 · 1 answers · asked by Anonymous

2007-10-17 18:20:26 · 7 answers · asked by holcomb350 1

Find the domain D for the function y=f(x). And Please write answer in interval notation.

2007-10-17 18:14:12 · 2 answers · asked by Anonymous

Find the domain D for the function y=f(x). And Please write answer in interval notation.

2007-10-17 18:10:25 · 2 answers · asked by Anonymous

how can i find it to solve a problem im doing on differentials?

2007-10-17 18:07:29 · 10 answers · asked by sportzblock 1

Find the missing number? 19, 18, 16, 13, ____?

2007-10-17 18:04:56 · 25 answers · asked by acuraboy1978 2

need steps explained

2007-10-17 17:36:01 · 12 answers · asked by Anonymous

I'm working on something for my calculus class, and I need to figure out which mathematician derived the derivative of sin of x, to equal cos x.

d/dx sin x = cos x

I need the answers by tomorrow night, I tried looking everywhere online, but no such luck.

Thanks in advance!

2007-10-17 17:30:09 · 1 answers · asked by Anokhi P 1

Also, 516 is 7% of what number?

2007-10-17 17:27:29 · 9 answers · asked by Automated Smiles 1

Let P be the point (1, 3, 7). If the point (4, 0, -6) is the midpoint of line segement connecting P and Q, what is Q?

I know that v= (x2-x1, y2 - y1, z2 - z1)

What now?

2007-10-17 17:17:52 · 2 answers · asked by Anonymous

2007-10-17 17:00:26 · 6 answers · asked by wal_gil50 1

A laser beam is to be directed through a small hole in the center of a circle of radius 10 ft. The origin of the beam is 35 ft form the circle. At what angle of elevation should the beam be aimed to ensure that it goes through the hole?

please help me and explain it to me, thanks guys!

2007-10-17 16:34:48 · 1 answers · asked by mathhelpmee 1

The hypotenuse of right triangle is 3 ft. If one leg is 1 ft find the degree measure of each angle.

I need help and explaining for this, thanks

2007-10-17 16:33:19 · 2 answers · asked by mathhelpmee 1

(see the question for the problem) We're supposed to find what x is. My friend and I can't figure out whether it would be 13 or -13.
Please help! Thanks in advance.

2007-10-17 16:31:29 · 10 answers · asked by Anonymous

The table below records for each of 11 plots of barley a measure of the extent of mildew
attack (actually the percentage of third youngest leaf area affected) and the ultimate yield of
grain in units of t/ha.

mildew (x) yield (y)
0.7----------- 4.41
2.6----------- 4.26
2.6----------- 4.38
4.3----------- 3.90
4.8----------- 4.28
0.9----------- 4.60
mildew (x) yield (y)
6.5----------- 3.87
2.4----------- 4.04
4.1----------- 4.16
4.7----------- 3.93
0.8----------- 4.60

(a) Perform a linear regression analysis using R. Explain any inference you can make from
the results.
(b) Plot the data and the fitted line.
(c) Using the equation of the straight line, predict the yield when mildew = 1.5.
(d) Find the correlation between the two variables.

2007-10-17 16:30:05 · 2 answers · asked by Anonymous

The first derivative of a function is given as y= the square root of (x + 2) for x <=2; and y= x -3 for x>=2. How do I find the original function and the second derivative?

2007-10-17 16:28:13 · 1 answers · asked by Anonymous

2007-10-17 16:17:05 · 9 answers · asked by Anonymous

0 is not a counting #

2007-10-17 16:15:55 · 2 answers · asked by Katie 2

a) use the binomial series to expand 1/sqrt of (1-x^2)
b) use part (a) to find the Maclaurin series for sin^(-1)x

show work thanks

2007-10-17 16:15:43 · 2 answers · asked by Anonymous

4 + 1x + 3x = 2 (2x + 5) Decide whether Identity , No Solution , or if you have to solve and the answer.

2007-10-17 16:14:56 · 11 answers · asked by Anonymous

BUT (0.0) is not an inflection point on graph f.

2007-10-17 16:10:32 · 6 answers · asked by Anonymous

2007-10-17 15:57:09 · 7 answers · asked by Anonymous

http://i40.photobucket.com/albums/e215/xxs3xp1stolxx/Jazz%20303h/Picture9-1.png

2007-10-17 15:56:15 · 7 answers · asked by Anonymous

What is the smallest number of colours you would need in order to paint a cube so that no two sides the same colour will touch? (each side is painted one plain colour) ?

2007-10-17 15:55:18 · 15 answers · asked by Sienna 2

Ok, I have no idea how to solve this problem...

Find a quadratic with solutions: 3 + i, 3 - i, 2

I have no idea.
Can someone please explain this to me?

2007-10-17 15:43:39 · 4 answers · asked by adlihdz 2

2007-10-17 15:35:35 · 2 answers · asked by Paul Y 1

2007-10-17 15:27:57 · 2 answers · asked by Anonymous

what will the concentration of the resulting mixture be. I am mixing 1/2 gal of 20% nitro to 1/2 gal 60% nitro.

2007-10-17 15:25:31 · 3 answers · asked by yvonnereil 1

i want to know i mean the highest i know is 999,999,999,999,999 or nine hundred ninety-nine trillion nine hundred ninety-nine billion nine hundred ninety-nine million nine hundred ninety-nine thousand nine hundred ninety-nine

2007-10-17 15:20:59 · 8 answers · asked by Nikolebas 2

4. A university bookstore recently sold a wire bound graph-paper notebook for $2.50 and a college-ruled notebook for $2.30. At the start of the spring semester, a combination of 50 of these notebooks was sold for a total of $118.60. How many of each type were sold?

2007-10-17 15:15:17 · 4 answers · asked by Hope C 1