Mathematics - 4 November 2007

The velocity function v(t) (in meters per second) is given for a particle moving along a line.
v(t) = t^2-2t-8 1<= t <=5
Find the displacement d1 traveled by the particle during the time interval given above.

And the displacement is -44/3

Find the total distance d2 traveled by the particle during the time interval given above.
Would it not be just be the |-44/3| ?
Or am I a little confused on what they are asking for?

2007-11-04 03:26:59 · 3 answers · asked by Smokey. 6

2^1.9

I got 3.800 is this right

2007-11-04 03:26:41 · 4 answers · asked by derrim2000 1

solve each equation for "x"by using the natural logarithm function. Round your answers to the nearest hundredth. Show work and describe

0.42^(-x)=7

2007-11-04 03:16:00 · 7 answers · asked by hockeyman25158 2

what are some fractional equations that are hard and are easy for a freshman highschool student to understand....I just need examples....both sides of the equation have to be a variable.....Just examples Pleaseeeeee!!!!!!
/This is the only one i got so far....

ex: 1/4n= (8/4*(2/2*2/1))n

2007-11-04 03:10:57 · 2 answers · asked by sweet 3

I have a question that goes like this:

10 points are marked on a straight line, and 11 points are marked on another line parallel to the first one. How many:
a) quadrilaterals
b) triangles
are there with vertices at these points?

2007-11-04 03:09:57 · 1 answers · asked by cincauhangus 2

Ok the book gave me the answer to this problem. I need to know how they got to this answer. If you divide 20 into 60 and into 40 you get 3/2 which then =1.5, but why 20 and how do you get 1.5 out of 3/2? PLease help me and give me step by step.
Thank you lots
Bridgette

2007-11-04 03:00:13 · 4 answers · asked by Bridgette H 1

2007-11-04 02:54:50 · 26 answers · asked by Anonymous

Determine the Maximum or Minimum value for each quadratic function:

b) f(x)=2 (x-4) (x+6)
and
c) f(x)= -2x^2 +10x

Please show all steps and explain if possible, thank you.

2007-11-04 02:46:19 · 6 answers · asked by Anonymous

~ Calculate the amount of interest you'll have at the end of the indicated period.~

Question: You invest $98,600 in an account that pays simple interest of 3% for 2 years?

the answer is $5916.00, i just need help with how to do the problem. Thanks!

2007-11-04 02:39:28 · 9 answers · asked by cassie05 3

2007-11-04 02:37:31 · 5 answers · asked by Anonymous

2007-11-04 02:22:25 · 4 answers · asked by Anonymous

The number of cells in a tumor doubles every 3.0 months. If the tumor begains as a single cell, how many cells will there be after 3 years?

2007-11-04 02:19:42 · 6 answers · asked by cassie05 3

Math teacher gave us a project, but I have no idea how to do it, can u explain it, or show me how to do it?

"applying the "compeating the square" method to the equation given above, show that it's roots (values of x) are expressed by the quadratic formula:

equation given above- a(x squared) + bx +c = 0

2007-11-04 02:07:13 · 3 answers · asked by Joey 1

complete the square of circle with centre c x^2 + y^2 -8x=6y=11 in the form (x-a)^2 + (y-b)^2 = r^2

then find the coordinates of c and the radius of the circle

c0 then o point has coordinates (0,0)
find teh length of co and determine whether point o lies inside or outside the circle with a reason

2007-11-04 02:05:34 · 3 answers · asked by Anonymous

Here it is:

mrs. mahoney went shopping for some canned goods which were on sale. she bought 3 times as many cans of tomatoes as cans of peaches. the number of cans of tuna was twice the number of cans of peaches. if mrs. mahoney purchased a total of 24 cans, how many of each did she buy?

i think the equation if x = peaches, then
x times 3 + x times 2 = 24
ive tried everything and i cant reach it

please help

2007-11-04 01:44:37 · 8 answers · asked by cheshirecat192 3

x + y + z = 10

No of solutions :
-------------------------
If x,y,z are real - infinite

If x,y,z non negative integers- 66 ........(1)

if x,y,z positive integers then - 36.........(2)


whats the difference between (1) and (2) ?

2007-11-04 01:38:57 · 3 answers · asked by calculus 1

2007-11-04 01:32:31 · 8 answers · asked by Jenny D 1

Here goes:
Both Winifred and Winston collect model helicopters. Between them they have 200. If Winifred sold Winston 50, then Winston would have 4 times as many as Winifred. How many does Winifred have.

The working out must have an algebraic thingy in it it e.g winifred could be a, and winston b, etc.

2007-11-04 01:22:26 · 8 answers · asked by Anonymous

1,2,4,3...

2007-11-04 01:06:44 · 4 answers · asked by Anonymous

I forgot how to multiply a decimal by a whole number how do I do it helppppppppppppp!!!!!

2007-11-04 01:05:41 · 6 answers · asked by Anonymous

i have a quiz tomorrow and need some help

1. write the standard form of the equation of the line that is parallel
to the graph of y=2x -3 and passes through the point at (1,-1)

2. write the standard form of the equation of the line that is perpendicular to the graph of y=2x -3 and passes through the point at (6,-1)

2007-11-04 01:05:29 · 2 answers · asked by Anonymous

Greg worked 36 hours this week. This is 3 more than twice the # of hours Darryl worked. Which equation could you use to find how many hours Darryl worked?
A. 36 = 2x + 3
B. 36 = 2x -3
C. 36 = 2(x+3)
D. 36 = 3(x+2)

2007-11-04 01:59:33 · 4 answers · asked by Karissa F 1

During my first year of college I was an Aerospace Engineering major. I took Calculus, Physics, and Chemistry.

I had an easier time with Calculus than I had with Trigonometry and Math Analysis in high school. Are there any mathematicians out there that agree with me that learning Calc is easier?

Many thanks,
C.L.

2007-11-04 01:57:48 · 4 answers · asked by Ccl471 1

solve

2007-11-04 01:51:39 · 13 answers · asked by Karissa F 1

if f"(x) = 3/sqrt(x) and f'(4) =7 then f(x) equals

2007-11-04 01:47:16 · 6 answers · asked by Anonymous

2007-11-04 01:38:31 · 9 answers · asked by Nicole D 1

How can you prove that there exists a real number c independent of n such that

a^n >= c*n^(k+1)

where a is a positive real, k is a positive integer, and c is independent of n, so that it is true for n=1,2,3,...

I've tried letting a=1+b and using the binomial expansion and it seems to help, but i'm still getting stuck. i think it will be to do with sequences and limits etc as well.

thanks

2007-11-04 01:37:46 · 1 answers · asked by mongrel73 1

1, 4, 7 ,10 1,3
Work out the expression, in terms of n, for the nth term of the sequence.
i really dont know how to do this - can you please help me?? i havent got a clue and ive got an exam on it tommorrow!! help!!

2007-11-04 01:30:04 · 6 answers · asked by x_joanne_m_x 1

2007-11-04 01:18:10 · 12 answers · asked by X.Choices.X 2

a bus for a school field trip costs 624 pesos. Since the number of persons making the trip is 13 less the the capacity of the bus, it costs 8 pesos more per student than if the bus is filled. How many students are in the trip?

2007-11-04 01:17:05 · 8 answers · asked by IAN M 1