Mathematics - 20 November 2007

2007-11-20 23:59:29 · 9 answers · asked by Ariel B 1

2007-11-20 23:49:57 · 3 answers · asked by Ariel B 1

I have put the questions on the following website; http://www.mbi-fasteners.com/stat.gif

2007-11-20 23:47:08 · 2 answers · asked by A 2

find x and y

2007-11-20 23:19:47 · 33 answers · asked by muzero e 2

Please help if you can.
Show and explain detailed working so that I would understand.
Thank you very much.

2007-11-20 23:17:41 · 2 answers · asked by Anonymous

Had this on a test and it completely stumped me. Since then, I've lost the math book that would give me the answer. I was hoping there'd be a math genius that'd know off hand. ^-^

2007-11-20 20:54:18 · 6 answers · asked by Wildfire 2

Solve for x:

1. (0.04)^x+2 = 256

Note: x+2 is the exponent of 0.04.







Pls. answer it i need it now pls. pls. i'm begging you pls. pls. pls. pls. pls. pls. show your solution pls. pls. pls. pls.

2007-11-20 20:32:15 · 3 answers · asked by Anonymous

2007-11-20 20:08:27 · 2 answers · asked by Zeta 3

2007-11-20 19:59:08 · 3 answers · asked by Anonymous

What is x?

2007-11-20 19:57:02 · 6 answers · asked by Anonymous

A. Simplify:

1. (25^3/2) / (5)^-1/2


B. Solve for x:

1. (0.04)^x+2 = 256

Note: In A, 3/2 is the exponent of 25, while -1/2 is the exponent of 5. In B, x+2 is the exponent of 0.04.







Pls. answer it i need it now pls. pls. i'm begging you pls. pls. pls. pls. pls. pls. show your solution pls. pls. pls. pls.

2007-11-20 19:54:57 · 3 answers · asked by Anonymous

We are doing logarithms, and I have no examples of problems like this, and have no idea how to do it. I believe you'd take the log of both sides....then I got nuthin. Any assistance is appreciated.

2007-11-20 18:54:07 · 3 answers · asked by C F 1

2007-11-20 18:51:20 · 9 answers · asked by Anonymous

Can anyone help me and state conditions that must be fulfilled in order for quartic f. to have "W" (or M ) shape

2007-11-20 18:32:38 · 7 answers · asked by Anonymous

A square measuring 5" × 5" has a surface area of 50 in²

Doesnt each square have a front side and a reverse side?

If I asked to measure the surface area of a cube, arent all sides considered?

Imagine a hollow, open-ended cylinder. The surface area would be both internal and external... plus the areas of the ends - the donut shapes, connecting internal and external... not the hollow center. Why is it this is a consistent rule for cylinders of this design... but when we take the limit of the surface area as the the width of the donut gets smaller, the area is relatively constant. But when the width reaches zero, the ares is suddenly cut in half for only arbitrary reasons - that being the cylinder is now a two dimensional object curving in on itself in three dimensional space

2007-11-20 18:04:29 · 7 answers · asked by Anonymous

4(2cosx + 1) = 0
therefore:
2cosx = -1
cosx = -1/2

(2nd and 3rd quadrants bcoz its negative)

x = 120
and 180 + 60 = 240

x = 120, 240

2007-11-20 17:59:56 · 13 answers · asked by Anonymous

I tried dividing through by s. So we get

in x + in x * co x = 4/s

now multiply by both sides by the inverse of in x which is out x

1 + co x = 4 * out x / s

which leads to

co x = 4*out x / s - 1

co x = (out x +out x +out x +out x )/s - 1

co x = ( rfo x) / s - 1 (rfo = really far out)

now divide thur by o

cx = rfx/s - 1/o

cx = (rfxo - s) / so



take first derivitive

cso = rfo

such forth cs = rf

now factor into the mother equation....
cx = (rfxo - s) / so
which leads to
rfx= (rfxo-s)/o

what should i do from here? thank you fellow answerians :)

2007-11-20 17:39:04 · 3 answers · asked by Christine 1

...what is the length of the resulting crease in terms of x and y? I figured it out once, but can't remember how I did it. My equation, however, needed x to be the shorter side and y to be the longer.

2007-11-20 16:59:20 · 4 answers · asked by Omicron 2

i hav found x to be 0 or 90... but dont i have more answers like 360 - 90 or something... cant work out where to go from here! have i even got that right? help! its not meant to be hard! :)

2007-11-20 16:42:13 · 7 answers · asked by Anonymous

(Using the Radioactive decay Model)

Radioactive radon After 3 days a sample of radon-222 has decayed to 58% of its original amount.

a) What is the half life of radon-222?

b) How long will it take the sample to decay to 20% of its original amount?

2007-11-20 16:39:59 · 3 answers · asked by alexo 4

2007-11-20 16:37:01 · 10 answers · asked by bebixiu 1

2007-11-20 16:31:07 · 4 answers · asked by Deborah J 1

hey everyone
I completely forget how to find the horizontal asymptotes for a function.
the specific function I need asymptotes for is:

9x2 – 36 / x2 - 9
(the x's are squared, it wouldn't let me type it with exponents)
I know how to get vertical asymptotes...but if anyone wants to do a little math or at least remind me how to get horizontal asymptotes, that would be great
thanks!

2007-11-20 16:26:12 · 4 answers · asked by COXIE 3

i keep getting this problem wrong every time i redo it

19-5x/2=34

and should x= 6


and another one is:

41x-(-33)-25x=-145

and should x= -7


just wondering if this r right or lose?!?

2007-11-20 16:22:50 · 6 answers · asked by swift 1

2007-11-20 16:17:52 · 2 answers · asked by Khalid 1

3x ^4

2007-11-20 16:16:18 · 4 answers · asked by Anonymous

√(1+8v) - 2 = v
√(x-6) = 3 + √x

*everything in the parenthesis is in the radical

2007-11-20 16:09:47 · 4 answers · asked by Anonymous

The probability density function of the length of a hinge for fastening a door is f(x)=1.25 for 74.6 < x < 75.4 for millimeters. Determine the following:
a) P(X<75.4)=?
b)P(X<74.8 or X > 75.2)
c)If the specifications for this process are from 74.7 to 75.3 millimeters, what proportion of hinges meets specifications?

2007-11-20 15:58:28 · 2 answers · asked by Anonymous

An inspector working for a manufacturing company has a 99% chance of correctly identifying defective items and a 0.5% chance of incorrectly classifying a good item as defective. The company has evidence that its line produces 1.2% of nonconforming items.

a) What is the probability that an item selected for inspection is classified as defective?

b) If an item selected at random is classified as nondefective, what is the probability that it is indeed good?

2007-11-20 15:55:16 · 2 answers · asked by Anonymous

An office water dispenser holds 18.9 L of water. The paper cones from which people drink are 9.5 cm high with radius 3.5

a) how many full cones of water can be dispensed from the container?

b) what is the minimum amount of paper needed to construct the number of cones in part a?

2007-11-20 15:55:01 · 1 answers · asked by andrew c 1