Mathematics - 25 September 2007

Please breakdown the problem and show each step.

2007-09-25 14:53:47 · 2 answers · asked by Sam Dali 2

7. The students in ms changs class decide to order water bottles that advertise the walkathon.Malliik obtains 2 different quotes for the costs of the bottles.

Fill it up charges $4 per bottle

Bottles by bob charges $25 plus $3 per bottle

a. for each company, write an equation maliik could use to calculate the cost for any number of bottles.

b. which company do you think the class should buy water bottles from? what factors influenced your decision?

c.For what number of water bottles is the cost the same for both companies?

8. The equation C=5n represents the cost(c) in dollars for n(variable) caps that advertise the walkathon. Which of the following pairs of numbers could represent a number of caps and the cost for that number of caps, (n,c)?
MULTIPLE CHOICE:
A.(0,5) b.(3, 15) c.(15, 60) d.(5, 1)

2007-09-25 14:52:16 · 1 answers · asked by an0nym0us 1

2007-09-25 14:51:17 · 2 answers · asked by nala 1

2007-09-25 14:49:13 · 3 answers · asked by nala 1

1. Hoshi walks 10 meters in 3 seconds.

a. what is her walking rate?

b.at this rate, how long does it take her to walk 100 meters?

c.suppose she walks this same rate for 50 seconds. how far does she walk?

d.Write an equation that represents the distance(d) that hoshi walks in t(variable) seconds.

2.Milo walks 40 meters in 15 seconds and mira walks 30 meters in10 seconds.Whose walking rate is faster?

2007-09-25 14:39:58 · 11 answers · asked by an0nym0us 1

Imagine you just started making new account. You start with Level 1, 101 points (100 for making new account +1 for visiting). I will never ask question. You keep getting Best Answer everytime you answer a question. You answer questions and voting until you reached to the limit everyday. Using the point system chart, how many days will your new account will be at Level 5?

(I'm too lazy to figure it out by myself, even when I'm High School student)

2007-09-25 14:28:22 · 1 answers · asked by Darkray 6

Integral from 1 to 11 of ((11)/(cuberoot(x-1))dx

2007-09-25 14:09:15 · 2 answers · asked by garrett m 1

Find equations of the tangent planes to the sphere x^2 - 6x + y^2 - 8y + z^2 + 2z = 10 with a normal vector <2,2,1>. Hint, first find the center and radius of the sphere and use the normal to go from the center to the two points of tangency that are on the sphere.

-----
So I found the center and radius (3,4,-1) r=6
The length of the normal is 3 so I need to multiply the vector by 2 to find the points.

But how would the equations look?
Is it just <±t+4x, ±t+4y, ±t-z> = ?
So that any number t would find the point?

2007-09-25 14:03:22 · 1 answers · asked by James B 3

The point A is the foot of the perpendicular from the point (1,1,9) to the plane 2x+y-z=6. Find the coordinates of A.

Can anyone explain how this is done? Thanks in advance!

2007-09-25 13:47:41 · 2 answers · asked by meh. 2

I have to solve these two equations.

-36 + 2w = -8w + w


and


4p - 10 = p + 3p - 2p


If you could show how you did it so I'll understand next time please.
I tried them but I messed up.
Thanks for you help
I really appericate it.

2007-09-25 13:35:35 · 10 answers · asked by MF 4

lim (s-->16) of (4-s^1/2)/(s-16)
The limit as s approaches 16 of 4 minus square root s over s minus 16.

2007-09-25 13:34:06 · 5 answers · asked by Mrs.Harbi 3

suppose the intial height from which the rubber ball drops is 100in. The rebound heights to the nearest inch are 80, 64, 51, 41
a) what is the rebound ratio for this ball?
b) what is the height of the tenth rebound?
c) after how many bounces will the ball rebound less then 1in? less then 0.1in?

2007-09-25 13:32:46 · 1 answers · asked by bleach145 1

1. 4pi/radians 5
2. 3pi/radians 4
3. 5pi/radians 6
4. 3/pi radians 5

2007-09-25 13:30:18 · 4 answers · asked by dilljam1977 1

ok so idk if i have the correct answer. so please work it out and tell me what you got. thanks. =)

How much dirt is there in a hole a foot long, a foot deep, and a
foot wide?

2007-09-25 13:28:26 · 5 answers · asked by Anonymous

Please help me!!!

2007-09-25 13:27:36 · 5 answers · asked by Ducky 2

that 2 at the end is squared

2007-09-25 13:23:34 · 1 answers · asked by pburr17 1

1. ^/[]15 over 4
2. ^/[]15 over 15
3. 4
4. 4^/[]15 over 15

2007-09-25 13:20:32 · 3 answers · asked by dilljam1977 1

c=13,a=12

a=4,b=4square root of 3

a=4,c=8

2007-09-25 13:19:49 · 1 answers · asked by edwina 1

PLEASE I NEED HELP!!! Anyone who reads this please please PLEASE ANSWER IT!!! I NEED HELP!!!

2007-09-25 13:18:00 · 5 answers · asked by Anonymous

how do you find area of a tube
thanks you if you helped me

2007-09-25 13:06:06 · 6 answers · asked by vicky 2

2007-09-25 13:03:22 · 6 answers · asked by Sophia 1

A triangle has an area of 36 ft2 (squared) and a base of 9 ft. Find the height.

Please explain step by step how to figure this out.
(If possible--intermediate school level)

2007-09-25 12:58:05 · 4 answers · asked by moonii 3

using order of operations.
you can use exponents and roots.


i want to see who can get this first.
10 points to them

2007-09-25 12:48:24 · 2 answers · asked by Me 1

Okay I have two math questions that I need a little help with for school tomorrow.
The instructions state to Solve the following expressions:
2x^2+x-3
------------
4x^2-9

AND

21+11x+2x^2
------------------
3x^2-25x+18


^2 denotes squared
----- Over(or the devision line of a fraction)

2007-09-25 12:46:57 · 4 answers · asked by Lord Phoenix 1

How would you answer this?
(2r-s)(s^2+4r^2-4rs)

2007-09-25 12:37:51 · 4 answers · asked by Anonymous

Let delta-f1 = 1; delta-f2 = 3; delta-f3 = 5 ...
a.What is the pattern for the delta-f sequence? (Use words, de-
scribe)
b. What is a formula for the delta-f sequence? (don't use a recursive formula)
c. Find the sequence f that gives the delta-f sequence as it's
differences. Start with f1 = 1
d. Draw a conclusion.

I cant understand part c and d
to part b i have the answer 2n-1
where n is the term number as delta-f is an arithmetic progression.
Can someone plz help me with part c and d

2007-09-25 12:37:49 · 6 answers · asked by Hammad A 1

I'm having trouble with the following question.

Suppose A is a closed set and let x be in A. Let B = A / {x} so that B is the set A with the element x removed. Under what conditions is B closed?

So far, I know that x cannot be a limit point of A, since closed sets contain all of their limit points; but I'm having trouble coming up with any further condtions. Thanks.

2007-09-25 12:35:10 · 2 answers · asked by mobaxus 2

2007-09-25 12:33:53 · 10 answers · asked by Anonymous

i dont know how to do this a need some help starting it

3) an objects is moving initially in the x direction at 4.5 m/s^2 when an acceleration is applied in the y direction for a period of 18 seconds. if the object moves equal distances in the x and y directions during this time, what is the magnitude of the acc?

2007-09-25 12:32:13 · 2 answers · asked by Arianna A 1

2007-09-25 12:30:21 · 11 answers · asked by Dancing Sheep! 4