Mathematics - 24 August 2007

I am entering definite integrals the hard way on my ti-89 (I'm entering the funtion twice (with two values)). What is an easier way to do this please?

2007-08-24 16:39:58 · 1 answers · asked by RogerDodger 1

How many feet and inches is 1.92 metres... and what is 5 foot 6 inches converted to meters?

2007-08-24 16:23:14 · 14 answers · asked by saturnmaiden 2

2x/x^2+4*dx

2007-08-24 16:14:22 · 6 answers · asked by diana 1

This is for spherical coordinates, so:
x=psin(a)cos(b)
y=p(a)sin(b)
z=pcos(a)

(a and b are subsituted in for theta and phi, for obvious typing reasons.)

2007-08-24 15:59:55 · 3 answers · asked by Anonymous

this is for a pettion im doing on school food.But I can't find the awnser to this so i can't find out how much me should eat in grams!!

2007-08-24 15:42:44 · 15 answers · asked by bob w 1

1. Solve by using the quadratic formula:
4x^2 + 7x + 5 = 0

2. Solve:
x^2 - 4x - 21 = 0

2007-08-24 15:42:05 · 5 answers · asked by casper5 3

2007-08-24 15:38:52 · 9 answers · asked by Ciavana 3

i'm having a brain fart, how do you figure this out?

2007-08-24 15:34:03 · 5 answers · asked by Anonymous

The present population, P, in thousands, of a town is related to the initial population of the town at time t = 0 by the formula

P = 125(3)(0.05t)

where t is measured in years. The town was populated in 1880.
What was the population of the town in 1880?

2007-08-24 14:28:18 · 4 answers · asked by Anonymous

1)A rectangle has a diagonal of 10 and length of 8. Find its width.
My answer is 6? correct?

2) The legs of an isosceles triangle are 13 units long and the altitude to the base is 12 units long. Find the length of the base.
My answer is 10? Correct?

If I'm wrong please explain to me how to do it. Thanks!

2007-08-24 14:19:14 · 10 answers · asked by Randy M 1

If f is continuous on [2,4], f' exists on (2,4), and
f'(c) = { f(4) - f(2) } / 2, then cE2 (2; 4).

2007-08-24 13:42:21 · 1 answers · asked by quizzie 1

Find the value of a^3 + b^3 + c^3 - 3abc
given that
a+b+c = 10 & a^2 + b^2 + c^2 = 83

2007-08-24 13:19:15 · 3 answers · asked by besst_gal 1

I have a math problem and i dont know what order to do it in. Its algebra 1.

2007-08-24 13:12:52 · 5 answers · asked by tims1993 1

2007-08-24 12:32:38 · 1 answers · asked by RogerDodger 1

2007-08-24 12:23:09 · 8 answers · asked by m-o-o-n 3

Would you please explain the answer of this problem to me.

x/ x - 5 + x + 1/ x + 5

remember to make the denominators common. thanks

2007-08-24 12:07:56 · 6 answers · asked by Gator Girl 5

i need the steps not the asnwers

23. (radical) 4y^2 over 9

25. 1/4 (radical) 16 over x^2

27. 3(radical)2 multiplied by (radical)2x^2

31. 3(radical) 3 minus 2(radical) 12

33. 4 (radical)2 minues (Radical) 18

2007-08-24 11:57:48 · 2 answers · asked by Anonymous

Okay, it looks like its only dividing incorrectly.

Take 9/6 for example, it says it equals 2. Or 7/2 equals 4. What the hell is going on? I messed with the settings today...I probably pressed something wrong. But I don't know how to fix it.

2007-08-24 11:47:18 · 5 answers · asked by Anonymous

I'm learning how to convert DMS (degrees,minutes,seconds) to radians but I don't know how to convert this:

71.72 degrees

2007-08-24 11:29:38 · 3 answers · asked by mskris 1

Show work and explain it to me and you get 10 points.
2/3 <-- thats supposed to be a fraction.


2/5(X-1)=8/15 {1/6, 1/3, 1/2, 2/3}


2.7(X+5)=17.28 {1.2, 1.3, 1.4, 1.5}


thankss. =)

2007-08-24 11:25:34 · 4 answers · asked by a&f. ♥ 2

Let
f(x) = -6 x - 3.
Use interval notation to indicate where f(x) is continuous.

Interval(s) of Continuity: ____


Let f(x)= [3/x+4]
Use interval notation to indicate where f(x) is continuous.

Interval(s) of Continuity: ____

2007-08-24 11:22:52 · 2 answers · asked by Joe B 2

is it ~p ^ ~q? and is the difference of ==> and ^

2007-08-24 10:37:09 · 4 answers · asked by Titan 2

Hi.
Could someone please walk me through the solution of this problem and also explain how you arrive at the solution:

In how many ways can 10 people be divided into 3 teams, one containing 4 and the other 3.
Thank you

2007-08-24 10:31:34 · 2 answers · asked by F 6

I've already tried distribution, I want to know if there are any other solutions.

2007-08-24 10:16:58 · 7 answers · asked by Tony Shark 2

2007-08-24 10:12:10 · 3 answers · asked by Carebear 1

http://s97.photobucket.com/albums/l202/massar532/?action=view¤t=jgdggj.jpg

the question is Graph the following equations in the same coordinate plane

y = 2x - 1
y = -x + 2





Then it says: What type of lines are formed?
Compare their slops.



HELP I DON'T GET THAT PART

2007-08-24 09:26:46 · 9 answers · asked by Anonymous

During a surge in the demand for electricity, the rate, r, at which energy is used can be approximated by the following where t is the time in hours and p is a positive constant.

r = te^(-pt)

(a) Find the total energy (E) used in the first (T) hours. Give your answer as a function of p.

(b) What value does E approach as T approaches infinity?


please, help me. can you walk me through it so i understand it? sorry, i posted this question earlier, but it copied wrong.

2007-08-24 09:22:18 · 2 answers · asked by Anonymous

It has 15 rooms. Assuming binomial distribution, find the probability that on any given day

a) exactly 6 rooms will be occupied
b) at least 3 rooms will be occupied
c) no more than 9 rooms will be occupied
d) the motel will be full

2007-08-24 09:12:24 · 5 answers · asked by Anonymous

4a-6=5+6a

2007-08-24 09:08:38 · 7 answers · asked by true love 2

"A 1991 report estimated that there were 692 salmon in the Green River. If the population is expontentially decreasing at the rate of e^0.09 per year, what is the expected population in 2009? Round your answer to the nearest integer. "

I want to know the answer and see if i did it right, since my test won't give me it afterwards

2007-08-24 09:07:23 · 1 answers · asked by Tony Shark 2