Mathematics - 13 December 2007

2007-12-13 09:20:17 · 3 answers · asked by CS 1

if you can do that, how do i do these three, as well??

2. 27^(5/3)
3. 16^(-1/4)


please show all these steps, i need to learn!
find x
5^x = 1 / 125

2007-12-13 09:15:20 · 4 answers · asked by Anonymous

1
_ x + 7 = 7
3

2007-12-13 09:15:11 · 10 answers · asked by =smokeL 1

A manufacturer of corrugated metal roofing wants to produce panels that are 52 inches wide and 4 inches thick by processing flat sheets of metal into the shape shown above

The profile of the roofing takes the shape of a sine wave. If x = 0, y = 0 is the left endpoint of the profile shown above and x = 52, y = 0 is the right endpoint, what is the equation, y=f(x), of the profile?

That was part A and the answer was y=2*sin((2*Pi*x)/13)

Pat B asks : What is the width (in inches) of a flat metal sheet that is needed to make a 52 inch wide corrugated panel 4 inches thick?
You may approximate the answer within .01 inches.

Could someone please explain part B for me.
Thanks

2007-12-13 09:13:39 · 1 answers · asked by Anonymous

x - 7 = 30

2007-12-13 09:09:05 · 9 answers · asked by =smokeL 1

I am going to take the AP Calculus AB exam in april and im curious which book will help me "crack the AP test." I know there are so many books out there and I wanted to know which was the best one to help me. Thanks.

2007-12-13 09:06:42 · 1 answers · asked by Anonymous

2007-12-13 09:05:46 · 9 answers · asked by Nicholas L 1

2007-12-13 09:01:17 · 5 answers · asked by Anonymous

X which has probability function
p(x)= 2(1/3)^x for x= 1, 2, 3,...
and use it to determine the value of u= E[X].
(Hint: Recall that Sum(from x=0 to infinity) ar^x= a/(1-r) for IrI< 1.)

2007-12-13 08:47:32 · 1 answers · asked by kondiii 1

-5(3y-2y-5)

2007-12-13 08:42:17 · 11 answers · asked by rach 3

the speeds of 40 cars clocked by radar on a particular road in a 35-mph zone on a particular afternoon:
30, 36, 42, 36, 30, 52, 36, 34, 36, 33, 30, 32, 35, 32, 37, 34, 36, 31, 35,
20, 24, 46, 23, 31, 32, 45, 34, 37, 28, 40, 34, 38, 40, 52, 31, 33, 15, 27,
36, 40.
The can't histograph I made did not look right.

2007-12-13 08:37:22 · 1 answers · asked by jennifer m 2

2cos2x=0 when does it equal zero...(radians please)

2007-12-13 08:37:07 · 3 answers · asked by Andrew C 1

What is the summation of 1/x - 1/(x+1) from x=1 to x=infinity?
In other words, what does the series converge to?

2007-12-13 08:35:21 · 2 answers · asked by Not Quite Agnostic 2

a + b = t
(a + b)(a - b) = t(a - b)
a^2 - b^2 = ta - tb
a^2 - ta = b^2 - tb
a^2 - ta + (t^2)/4 = b^2 - tb + (t^2)/4
(a - t/2)^2 = (b - t/2)^2
a - t/2 = b - t/2
a = b

Therefore all numbers are equal.

Where did this equation go wrong?

2007-12-13 08:30:58 · 13 answers · asked by Brian A 2

and base measurements 9 in. by 18 in. About how many gallons of water does the aquarium hold?

2007-12-13 08:15:11 · 4 answers · asked by Cookie A 1

solve for x

2007-12-13 08:13:49 · 3 answers · asked by Erick 1

I know this is an easy thing, but for the life of me I cannot remember how to get the answer

2007-12-13 08:10:29 · 6 answers · asked by craftylin50 1

1. What is the axis of symmetry of a parabola with the equation:
Y=X^2 + 2X - 15

2. what is the solution of: 1/8(x - 3)^2=5

Thanks

2007-12-13 08:04:29 · 2 answers · asked by Ashers 1

Is there any mathematical equation that can help me in solving this question?

2007-12-13 07:59:32 · 10 answers · asked by ? 6

I am doing homework and I can't figure these last three problems out:

4r^4w^2 + 9r^2w^6 -r^6w^2

(would that one be: 3r^6w^2 + 9rw^6)?

t^-5(t^2 - t^4 + 5t)


and, the worst one:

[x^(7y+1)]/ [ x^(7y-5)]

any help would be appreciated

2007-12-13 07:53:21 · 2 answers · asked by nfcu016 3

I just found this question I never got on my test last year... could anyone help explain it to me? I was thinking it had to be 2x/? but what I've tried doesn't work. Thanks in advance.

2007-12-13 07:34:11 · 2 answers · asked by ¿ /\/ 馬 ? 7

2007-12-13 07:26:36 · 11 answers · asked by Dan 2

Let f:R --> R be a continuous and periodic function such that it's fundamental period p is irrational. Let x_n be an increasing sequence of positive numbers such that x_n --> oo and (x_(n+1) - x_n) --> 0. Show that f(x_n) is dense in f([0, p]) .

2007-12-13 07:26:03 · 2 answers · asked by Steiner 7

2007-12-13 07:25:32 · 2 answers · asked by Anonymous

heres the problem. i have to set this quadratic inequality to zero...here it is: x*squared* -5x-4<-9....which simplifies to x*squared* -5x +5x< 0. then i need to find the binomial that makes x*squared* -5x +5x. HELP!!!! so far people at my school have told me that its impossible...sos.

2007-12-13 07:04:37 · 4 answers · asked by audi 3

https://ecot.iqity.net/clsresshr/class.com/ewew_content/geom1b/exammedia/geo2u4e10p10g56.gif
how could i find it

the selecitons are
1782 594 1188 891
:D thanks

2007-12-13 07:01:21 · 6 answers · asked by ehh 2

So Exams 1 and 2 are worth 30% of grade each (60% total) and final worth 40%. So far I've gotten 87.5% and 79.3%. Is it possible to get an A- (90%) in the class if I get an A on the final?

2007-12-13 06:45:18 · 17 answers · asked by mmd443 2

if i have a 84.6 in a class and want at least a 79.5 to keep my B what do i need to get on the exam if the exam counts for 20% just give me the formula if you could thank you

2007-12-13 06:31:26 · 12 answers · asked by Anonymous

A friend gave me this rule for my maths homework because I couldn't work it out (I wont bore you with everything else.)
The rule is n^3-m^3=(n-m)(n^2+m^2+nm) . The main problem I have is I don't know what to do here: m)(n and nm (is it added together or times or???)Can someone please give an example or an explanation of how to use it.

2007-12-13 06:26:40 · 5 answers · asked by iisjman07 4

If a gradient of -578.947 is present on a line of best fit then how can you work out the intercept of the Y-Axis when a co-ord of:

(0.00110,0.0000019) is given?

Thank you

2007-12-13 06:26:27 · 1 answers · asked by Anonymous