Mathematics - 6 August 2007

then
is n a prime number
If yes how and if no how

2007-08-06 23:34:48 · 4 answers · asked by arpit m 2

4^(n/2) x c^(n - 1) x 6^(1 - n)

2007-08-06 23:22:35 · 3 answers · asked by Anonymous

The letters r and theta represent polar coordinates. Write each equation in rectangular coordinates (x, y) form.

Let t = theta

(1) r = sin(t) + 1

(2) r = sin(t) - cos(t)

2007-08-06 23:20:09 · 2 answers · asked by journey 1

there is an association between the colour of olives preferred by respondents and the region in which they live. State your conclusion clearly

Region ....black olives green olives Total
West .......65 .................53 ................118
East ........59 .................76 ................135
South ......48 .................42 ................90
Total .......172 ..............171 ..............343

2007-08-06 22:27:22 · 7 answers · asked by Anonymous

2.find the sum of the term from the (n+1)th to the mth term inclusive of a arithemetrical progression whose first term is a and whose second term is b, if m=13,n=3 and the sum is 12a find the ratio b:a

2007-08-06 21:59:34 · 1 answers · asked by sikirutaye 1

The cost $C, for the production of x units of a certain product is given by C=(x+10)^3 Find the value of x for which the average cost per unit is a minimum and find this minimum average cost

2007-08-06 21:49:56 · 2 answers · asked by Scaryhunter 2

1. f(x)=3x+5=7
2. f(x)= 3/2x-4=5
3. f(x)=5x-7
4. f(x)= -4/5x+4

2007-08-06 21:47:40 · 2 answers · asked by Anonymous

The function
f(x) = x^(1/3)
is to be tabulated on the interval [1, 10] with constant mesh spacing.
(a) How many points are required for piecewise linear interpolation to yield five decimal places accuracy?
(b) What convenient step size would you choose in practise?

2007-08-06 21:11:10 · 1 answers · asked by David C 1

once paula came 15mins later and peter saw 6 buses depart. the 2nd time paula came 26 mins later and peter sadly watched 8 buses depart. but the next time peter came 43mins later than paula. How many buses departed the interchange while Paula was waiting for Peter?
find all possible answers
plz help peoples im baffled by this question

2007-08-06 21:06:30 · 2 answers · asked by ninja 2

There are 7 girls in a bus.
Each girl has 7 bags.
Each bag has 7 big cats.
Each big cat has 7 small cats.
How many nipples are there in the bus?
Note: each cat has 7 nipples.

2007-08-06 21:06:27 · 7 answers · asked by kathi S Niti 1

1. f(x)=5x-8
2. f(x)= -5/3x+12
3. f(x)=18+3x

2007-08-06 20:48:23 · 2 answers · asked by Anonymous

Find the linear function whose graph is perpendicular to the graph of given equation and passes through the given point.Use the slope-intercept form.
1. 5x+2y=10; (3,-5)
2. 3x+y=5; (2,-4)
3. 5x-3y=7; (8,-2)
4. 3x+8y=4; (0,4)
5. 3x-y=4; (2,7)
6. 2x-y=5; (-1,4)
7. -3x|+y=7; (-3,1)
8. 3x-y=2; (6,-1)

2007-08-06 20:40:22 · 3 answers · asked by Anonymous

determine the rate of the boat in still water. Determine the rate of the current. (hint: switch 45 minutes into hours). I had this math problem on a test in 1998, still don't know how to friggin figure it out :(:(:(.

2007-08-06 19:47:39 · 7 answers · asked by Anonymous

can anyone pls tell me what is the formula for common tangent,,??.....explain by following sum
1.A common tangent to 9x^2-16y^2=144 and x^2+y^2=9 is...?

2.the equation of tngt to hyperbola 2x^@-3y^2=6 at(3,2) is....?

2007-08-06 19:38:14 · 5 answers · asked by pjd_0501 2

I have a total of 1000 marbles, with 300 red, 600 blue, 100 green.

P(red marble) = 30%
P(blue marble) = 60%
P(green marble) = 10%

If I take a sample of 10 marbles..

What is the probability distribution of red marbles marbles? In other words, what is the expected value of getting 0,1,2,3,4,5,6,7,8,9,10 red marbles in the sample?

I don't need a list of the E(x) of 0-10, but please show work on how to do one or two examples.

2007-08-06 19:36:58 · 3 answers · asked by Dave H 2

If i get a 20% discount and i want to use it on something that costs 45$ wat will the cost end up? How do u find out how much it costs? What will the cost be if i want to use the 20% discount on something that costs 65$?

2007-08-06 19:20:23 · 10 answers · asked by Anonymous

2007-08-06 19:09:15 · 4 answers · asked by Anonymous

2007-08-06 18:53:36 · 2 answers · asked by Anonymous

Trying to solve for the variable.

2007-08-06 18:43:21 · 9 answers · asked by Anonymous

I have the problem pretty much down but this last part is messing with me.

Taking the second derivative from e^x - x(1/y)

I'm getting -xy^-2, but the book is saying the answer is xy^-2. I don't understand how the negative sign in front of the x can just disappear. Am I missing something or does my book have a typo?

2007-08-06 18:03:59 · 5 answers · asked by westbound65 1

Name the type of geometric figure that is the locus of points in a plane that are at a distance of 3 centimeters from the fixed point P.

2007-08-06 18:00:14 · 4 answers · asked by ½ÃÂù ± 2

Consider any two inrsecting lines l and m. The locus of points equidistant from l and m is also a pair of lines p and q. How are p and q related to each other?

2007-08-06 17:56:56 · 5 answers · asked by ½ÃÂù ± 2

100x8 -7,000+1x7-11

2007-08-06 17:56:00 · 14 answers · asked by Anonymous

I forgot this formula and am trying to calculate some odds for a physics project and it would help me out a lot to figure this out..

2007-08-06 17:50:01 · 3 answers · asked by werdnerd 2

between the ramp and the block is 0.25, will the block stay where it is placed or will it start to slide down the ramp? (back up with calculations)

2007-08-06 17:39:14 · 4 answers · asked by Kerry 2

i am going to be a sophmore in high school what do I need to know and how hard will it be.

2007-08-06 17:31:43 · 13 answers · asked by Ranjit S 2

pls. compute for the absolute range, quartile deviation, average deviation, standard deviation, variance deviation.. pls. help me this is my assignment in basic statistics..

2007-08-06 17:22:07 · 1 answers · asked by Anonymous

Find sin(theta+beta)

if cos theta = -1/2 and pi tan beta = 1/3 abd 0

2007-08-06 17:19:17 · 3 answers · asked by Paradox 2

Factor the sum of two cubes: x to the third and y to the third plus 64.

2007-08-06 16:59:49 · 4 answers · asked by DoWHATiDO 3

e^kx

2007-08-06 16:58:22 · 3 answers · asked by westbound65 1