Mathematics - 12 September 2007

How do I write an equation for this sequence:

3, 5, 9,. 17, 33, 65 [...] 4097

2007-09-12 14:36:12 · 6 answers · asked by ☆ 2

When I put '^4', I mean the variable 'r' is raised to the 4th exponent. How do I get the two variables, a and r alone? And how to solve for both?

2007-09-12 14:34:06 · 2 answers · asked by Red Sox 4 Life!! 2

2 (to the xth power) = 9

How do I determine the value of x?

2007-09-12 14:32:02 · 6 answers · asked by bokonon1000 1

3.

You are marooned on an island where there are only liars and truth tellers. You meet a couple and ask the husband, "Are you liars or truth tellers?" Whan can you conclude if he replies as folllows? Explain.
a) If I am a truth teller than so is my life
b) I am a truth teller if and only if my wife is a truth teller

This is logic ? number 3. First person to get it right gets 10 points. Take a guess if your clueless. Show bit of work. For more logic questions go to my profile

2007-09-12 14:31:41 · 6 answers · asked by Anonymous

i need to find the equation of the line that is tangent to the given function and parallel to the given line. please outline the steps with explinations, thanks.

f (x) = (x^3) + 2

3x - y - 4 = 0 or in other words y = 3x - 4

2007-09-12 14:30:20 · 3 answers · asked by Adam 2

please help!!!!!

2007-09-12 14:26:13 · 6 answers · asked by Anonymous

This was posted by my Calc. Professor:

The gravitational force exerted by Earth on a unit mass at a distance r from the center of the planet is

F(r) { GMr/R^3 if r { GM/r^2 if r >_ (Greater than or equal to) R

where M is the mass of the Earth, R is its radius, and G is the gravitational constant. Is F a continuous function of r?

The rational functions don't seem to present any problems, the denominators are exponential so the won't equal 0. It seems that F is a continuous function of r.

Can anyone help me with this problem?

2007-09-12 14:24:41 · 2 answers · asked by the Jam 2

2. 36x63=
3. 56/5629=
4. 15/3622=
5. 60/5110=

2007-09-12 14:21:35 · 1 answers · asked by rosemariestewart64 1

|2x +5| = x+1

(please show steps in solving this question.)

2007-09-12 14:19:50 · 2 answers · asked by Anonymous

Last school year i was one of the top students in math and now i got an F and D. its barely the First semester and i think its no big deal but the other half thinks i will probably fail. Which half should i listen to, First, Second, or BOTH?

2007-09-12 14:16:01 · 5 answers · asked by MAC529 1

I am interested in a career in information technology. However, I am not great at math. Do you need to be especially good at math to excel, or can I make it in the field? Also what kinds of classes should I be taking in high school? And finally: what is the highest level of math needed? (e.g. algebra, calculus, trig?)

2007-09-12 14:15:23 · 2 answers · asked by Derek W 2

http://img386.imageshack.us/img386/3070/12ll6.jpg

2007-09-12 14:14:28 · 1 answers · asked by mk 1

Evaluate the limit

lim
x--> Infinity

√9+10x^2 / (7+9x)

2007-09-12 14:13:25 · 1 answers · asked by Rachel 1

2007-09-12 14:11:05 · 7 answers · asked by Melissa R 1

The equation of a standard parabola is in standard form : y=ax^2+bx+c, factored form: y=a(x-s)(x-t), and vertex form: a(x-h)^2+k, and the quadratic formula is x = -b ± √(b2 - 4ac)/2a , I'm just curious how it will appear in a horizontal parabola. If their is such thing as a horizontal shaped parabola, please give an example of an equation or a word problem.

2007-09-12 14:08:12 · 2 answers · asked by Anonymous

http://earthobservatory.nasa.gov/Laboratory/Biome/Images/tempbelize.gif

for the months? i would do it but i forgot the formula.

2007-09-12 14:08:02 · 3 answers · asked by Anna 3

A closed box with a square base is required to have a volume of 50 cubic feet. Express the amount A of material used to make such a box as a function of the length x of a side of the square base.

2007-09-12 14:07:41 · 1 answers · asked by sn1per0nther00f 3

2007-09-12 14:07:40 · 2 answers · asked by wwwwwwweeeeee 2

List the probabilities for the eleven possible outcomes for throwing a pair of dice. Check is they add up to 1.

2007-09-12 14:06:38 · 6 answers · asked by Astalav 1

Which is larger???

2007-09-12 14:01:47 · 2 answers · asked by Anonymous

I need an expanation of a unknown percent if figures consists of two regions and you know the percent represented by one region?

2007-09-12 14:01:09 · 2 answers · asked by MJ 1

I Dont need the answer i just need to know the steps
Far East Fashions buys fabric in rolls containing 171 yards each. For men's suits, pants require 2 3/4 yards of material, vests require 7/8 of a yard, and jackets takes 3 1/2 yards.
A)how many yards of material are require for each complete suit?
B)How many suits can be made from each roll?
C)if each roll of 100% wool material costs $1,800, what is the cost of material per suit?
D)if the company adds labor and overhead charges of $290 per suit, and profit of $100 per suit, how much should they charge for each suit?

2007-09-12 13:55:56 · 2 answers · asked by Anonymous

So there is this problem that says: "Write an equation to model each equation."

then....

1. the total cost is the number of cans times $.70.
2. the perimeter of a square equals 4 times the length of a side.
3. The total legnth of rope, in feet, used to put up tents is 60 times the number of tents.
4. What is the number of slices of pizza left from an 8-slice pizza after you have eaten some slices??

please help and explain(:
Best answer earns 10 pointss(:

2007-09-12 13:45:56 · 6 answers · asked by Amandaaa(: 2

Let f(x) = (6/(x-7))-(84/((x^2)-49))

Calculate lim f(x) as x-->7 by first finding a continuous function which is equal to f everywhere except x =7.

lim f(x) as ->7 = _____

Thank you in advance!

2007-09-12 13:45:51 · 2 answers · asked by MA35 3

1. √(4x+1)=5-x

2. 2x^-4 – 5x^-2 + 2 = 0

3. 3x^2/-3 + 2x^1/-3 - 8 = 0

2007-09-12 13:44:47 · 1 answers · asked by beeboroachgoingon197 1

Choose from (i) one-many, (ii) many-one, (iii) many-many. Please give justification.
Thanks

2007-09-12 13:43:36 · 6 answers · asked by mathteacher_ziglar 1

sovlve for x

2007-09-12 13:38:45 · 10 answers · asked by Anonymous

Please show every step and explain

Find the first 6 terms given by the formula tn=tn-1+2tn-2 where t1=2 and t2=5

2007-09-12 13:37:16 · 1 answers · asked by Physics 101 1

I know once you factor out the top it would be (x-7)(x-2)/4x but how do you find the zeros from there?

2007-09-12 13:36:58 · 3 answers · asked by Anonymous

PLZ TELL ME!!!!!!!!!!!!!!!!

2007-09-12 13:32:03 · 3 answers · asked by Ally M 1