Mathematics - 12 November 2007

can't find an equation to use for this max/min problem

an open box is to be made from a sheet of card board with area 24 ft. squared by cutting out even squares (sides x ft.)from the corners and folding up. what are the dimensions of the box for the maximum volume?

2007-11-12 16:33:17 · 3 answers · asked by anf3rnee23 1

x/x+3 and 4/5 are frations

2007-11-12 16:28:46 · 5 answers · asked by nikia watson 1

The question is: Susannas family stops in williamsburg which is 126 miles from Duck,NC, and 153 miles from washington DC. if susannas family drove 54 mph from Duck to wiliamsburg what must their speed in mph be so that their total driving time is 5.0
hours?

2007-11-12 16:28:05 · 12 answers · asked by Anonymous

(2+5i)(3-i)-(3-i)(3+i) please evaluate that equation. Thanks.

2007-11-12 16:23:05 · 3 answers · asked by trunks610 2

I am having trouble with finding the LCD .

2007-11-12 16:12:56 · 1 answers · asked by Anonymous

whats Differential of e?

2007-11-12 15:50:04 · 7 answers · asked by Komin A 1

Use a geometric argument to compute ∫ 1(top) & -2(bottom) f(t) dt where f(t)= |t|

2007-11-12 15:47:26 · 2 answers · asked by bradm_127 1

As a prize, a contest winner gets to draw out one bill at a time from a box containing 10 five-dollar bills, 10 ten-dollar bills, and 10 twenty-dollar bills. The drawing ends when 3 bills of the same denomination are drawn, and, of course, the contest winner keeps whatever he has drawn. What is the largest sum of money that can be won under these conditions?

2007-11-12 15:47:22 · 6 answers · asked by apples. 4

show work please

2007-11-12 15:33:53 · 4 answers · asked by ggoorr 1

2007-11-12 15:33:08 · 11 answers · asked by Anonymous

A pail with 40 washers in it weighs 500 grams. The same pail with 20 washers in it weighs 420 grams. How much does the pail weigh?

2007-11-12 15:32:00 · 6 answers · asked by apples. 4

Math Problem =The Sum of two consecutive even integers in 118. What is the 2nd number?

2007-11-12 15:29:56 · 10 answers · asked by W0W 1

This is a question on last years version of an exam I'm studying for, can anyone help me out since my professor doesn't post or give answers?

Test each of the following series for convergence by either the Comparison Test or the Limit Comparison Test. If at least one test can be applied to the series, enter CONV if it converges or DIV if it diverges. If neither test can be applied to the series, enter NA. (Note: this means that even if you know a given series converges by some other test, but the comparison tests cannot be applied to it, then you must enter NA rather than CONV.)

All summation from n=1 to infinity:

1. ((ln(n))^6) / (n+5)
2. (9n^(8)-n^(4)+5n^(1/2)) / (5n^(10)-n^(3)+6)
3. (5n^(3)) / (n^(4)+3)
4. (cos(n)*n^(1/2)) / (5n+3)
5. (cos^(2)(n)*n^(1/2) / (n^(3))

Thanks!

2007-11-12 15:27:07 · 2 answers · asked by Alysse 1

What cycle is (a1a2...an)^-1?

Permutation Group

Can someone explain me how to solve this problem, I am a little weak on this subject. Please dont just solve the equation, need details how is done

2007-11-12 15:25:15 · 3 answers · asked by Anonymous

2007-11-12 15:13:01 · 1 answers · asked by bricklayer978 1

... How long would it take for the to complete the job if they were working together?

2007-11-12 15:03:24 · 8 answers · asked by bricklayer978 1

2007-11-12 15:01:43 · 5 answers · asked by bricklayer978 1

How do I put 2(y-1) = 3y+4 into Y=MX+B format??


Thanks!!

2007-11-12 14:56:59 · 6 answers · asked by dts_1992 2

2007-11-12 14:51:48 · 5 answers · asked by aminer_lover90 1

In a game of dice where your opponent has one die and you have another, the winner is the higher number (you each get to roll once).

There are 4 dice...
Die A: four 4's and two 0's
Die B: six 3's
Die C: four 2's and two 6's
Die D: three 5's and three 1's

If the opponent gets to pick the first one (unknown), which should you pick to win?
Why?

2007-11-12 14:33:20 · 2 answers · asked by Anonymous

2007-11-12 14:28:39 · 5 answers · asked by sharayah b 1

Let f be a differentiable function and define f2(x)= f(f(x)), f3(x)= f(f(f(x))) and so on. Find the expression for the derivative of fn(x), where n is any integer greater than or equal to 2.

I don't understand how to put this in terms of n! Please help!

2007-11-12 14:27:16 · 1 answers · asked by Jess 2

The distance traveled by a 75 mph train in 2 hours is 150 miles.
Compare each question with the information above.
a) Begining at a standstill, a car maintains a constant acceleration of 10 ft/sec^2 for 10seconds. What is its velocity after 10seconds? Give your answer in ft/sec and then convert in to mi/h.
b) In a vacuum, light travels at a speed of 300,000 kilometers per second. How many kilometers does it travel in a year? (This distance equals one light-year.)
c) A long distance runner ran in 5 hours, avering 6 mph for the first 3 hours and 5 mph for the last 2 hours. How far did she run?
This is a calculus problem. Please explain the answer in detail if you can.
This is a calculus problem.
I have answers, but I don't know how to get those answers.
(a) 100 ft/sec = 68.08mph
(b) 9.46*10^12 km
(c) 28 miles

2007-11-12 14:16:30 · 1 answers · asked by Anonymous

A searchlgith on a ship 1km from shore casts a spot of lgiht on the shore line. The searchlight is rotating at a rate of 1 rpm. How fast is the spot on the shore mvoing at the point nearest the searchlight? How fast is ti moving when the spot is 250 m father down the shore?

(i'm allowed to use the TI-83 after finding the equation for the answers...)
plz show me how u got the answers plz!!! beggin ya

2007-11-12 14:11:59 · 2 answers · asked by SDGD 1

The distance traveled by a 75 mph train in 2 hours is 150 miles.
Compare each question with the information above.
a) Begining at a standstill, a car maintains a constant acceleration of 10 ft/sec^2 for 10seconds. What is its velocity after 10seconds? Give your answer in ft/sec and then convert in to mi/h.
b) In a vacuum, light travels at a speed of 300,000 kilometers per second. How many kilometers does it travel in a year? (This distance equals one light-year.)
c) A long distance runner ran in 5 hours, avering 6 mph for the first 3 hours and 5 mph for the last 2 hours. How far did she run?
This is a calculus problem. Please explain the answer in detail if you can.
This is a calculus problem.

2007-11-12 14:03:16 · 1 answers · asked by Anonymous

1.5v-6.5w=3.5
0.5v+2w=3

what am i suppose to do?

2007-11-12 13:53:43 · 5 answers · asked by Anonymous

How can we find the Fourier Series for f(x) = x^3 without intergrating to find the coefficients, if it is known that f(x) = f(x + 2pi) = x^4 , -pi < x < pi, is (pi^4)/5 + 8pi^2(Sum from 1 to Infinity of: [(-1)^n/(n^2)] cos nx) - 48 (Sum from 1 to Infinity of: [(-1)^n/(n^4)] cos nx)?

2007-11-12 13:52:14 · 1 answers · asked by Jake Tenzel 1

2007-11-12 13:32:38 · 9 answers · asked by lfmc 1

need this two equation to solve "Log base 3 (2x+7) = 5" and


Log base 7(2x+7)= Log base 7 (2x+2)

2007-11-12 13:32:36 · 7 answers · asked by rambo 1

2007-11-12 13:30:16 · 10 answers · asked by brownie 1