Science & Mathematics - 30 June 2007

2007-06-30 09:53:06 · 3 answers · asked by Anonymous in Biology

2007-06-30 09:50:56 · 6 answers · asked by gamal 2 in Engineering

The purchasing manager for a firm is trying to determine what the safety stock should be for a particular product. She has developed the following table, which gives the distribution of demand during the lead-time and the probabilities:

Demand during lead time / probability
40/ 0.2
50/ 0.25
60/ 0.25
70/ 0.2
80/ 0.1
The carrying cost is $5 per unit per year, the ordering cost is $30 per order, and the stockout cost is $40 per unit. The reorder point is 60 units, and 6 orders are placed each year. What level of safety stock should be maintained?
ROP (reroder point)=d (daily demand) x L (order lead time) +SS (safety stock)
I don't know how to solve it.

2007-06-30 09:50:24 · 1 answers · asked by Anonymous in Mathematics

2007-06-30 09:42:45 · 19 answers · asked by IshotJR 2 in Astronomy & Space

2007-06-30 09:42:13 · 5 answers · asked by Anonymous in Geography

Xc=capacitive reactance
Pi=3.14
f=frequency
C=capacitor
Problem: A capacitor of unknown capacitance is wired to an alternating voltage source with a frequency of 60 hertz. if the resulting capcitive reactance is 663ohms, find the capacitance of the capacitor.

2007-06-30 09:32:55 · 3 answers · asked by Anonymous in Mathematics

A 5 uF capacitor has 5 x 10neg 4 coulombs of charge stored on its plates. Find the voltage across the capacitor.

2007-06-30 09:24:28 · 3 answers · asked by Anonymous in Engineering

2007-06-30 09:21:08 · 19 answers · asked by undercover elephant 4 in Biology

orientation - its a guide around the school. [my friend and i are attending for this year but we dont know when orientation is] plzz help thanks!!!

2007-06-30 09:19:32 · 2 answers · asked by ? 2 in Geography

I'm thinking about having mine surgically removed. Then if evolution kicks in, my sons won't have them.

2007-06-30 09:13:58 · 9 answers · asked by Anonymous in Biology

find Ax+B so that f(x) = ((1-3x)^m-1) / ((3-4x)^n+1) * ( Ax+B)
holds for all integers m, n >1

A) Ax+B= 4(m+n) x-12n+3m
B) Ax+B= 12(m+n) x+4n +9m
C) Ax+B= 4(m-n) x+12n- 3m
D) Ax+B= 12(m-n) x +4n-9m

2007-06-30 09:09:14 · 1 answers · asked by ph103 1 in Mathematics

how many feet are there in one acre . And how many acres are there in 16 by 1705 rods.

2007-06-30 09:08:49 · 2 answers · asked by David A 1 in Mathematics

What is the value of x

I don't know how to make the exponent so I just wrote squared

2007-06-30 09:01:47 · 10 answers · asked by romeo 2 in Mathematics

If a court would consider all the evidence would intelligent design or BIG BANG win? nothing else has ever been considered created by BIG BANG except the universe. Does that seem strange?

2007-06-30 09:00:58 · 12 answers · asked by james h 2 in Physics

so they ever sleep

2007-06-30 08:58:49 · 1 answers · asked by Just Me 1 in Zoology

2007-06-30 08:57:09 · 8 answers · asked by Anonymous in Mathematics

Any recommendations?

2007-06-30 08:55:59 · 2 answers · asked by yesbeee 2 in Engineering

I learned the formula to find the coordinates that divide a segment with endpoints x1 and x2 with ratio a:b, which is:
(x-coordinate): x1 + (a/(a+b))(x2-x1)
(y-coordinate): same as above but use y-coordinate

If someone knows how to solve find the ratio using this formula, that would also be helpful.

2007-06-30 08:55:36 · 2 answers · asked by cutest pooky 3 in Mathematics

Something must be blocking it. It can't be the sun, or you would see that shining.

2007-06-30 08:52:55 · 7 answers · asked by Lisa 4 in Astronomy & Space

x8 divided by x4.

2007-06-30 08:50:51 · 7 answers · asked by Anonymous in Mathematics

2007-06-30 08:48:21 · 10 answers · asked by gldnsilnc 6 in Botany

2007-06-30 08:47:38 · 4 answers · asked by Anonymous in Engineering

(a-b)2

a= -9 and b=9

2007-06-30 08:47:08 · 6 answers · asked by Anonymous in Mathematics

2007-06-30 08:45:17 · 4 answers · asked by Anonymous in Mathematics

2007-06-30 08:44:13 · 5 answers · asked by Anonymous in Chemistry

x-3 + x-3=7
_____________
3 4 24

This is a division problem

2007-06-30 08:43:34 · 2 answers · asked by Anonymous in Mathematics

(As in when making a cup of tea) Why does the teabag inflate when the hot water is added?

2007-06-30 08:42:17 · 6 answers · asked by Anonymous in Physics

2007-06-30 08:38:50 · 3 answers · asked by Anonymous in Physics

1. http://i209.photobucket.com/albums/bb248/pielover757/asgard5.jpg

2. http://i209.photobucket.com/albums/bb248/pielover757/asgard6.jpg

3. http://i209.photobucket.com/albums/bb248/pielover757/asgard7.jpg

4. http://i209.photobucket.com/albums/bb248/pielover757/asgard8.jpg

2007-06-30 08:37:49 · 3 answers · asked by Asgardfanofpie 1 in Mathematics

An observer notices that the angle of elevation of the top of a neighboring building is 60 degrees. if the distance from the observer to the neighboring building is 40 ft how tall is the building.

is the answer 40square root 3?

2007-06-30 08:36:55 · 3 answers · asked by Pradeep k 2 in Mathematics