Mathematics - 6 October 2007

2007-10-06 04:02:55 · 12 answers · asked by Anonymous

A cone is filled with ice-cream. It also has one scoop of ice cream on top in shape of a half sphere. The diameter of the sphere is 2 in and the height of the cone is 5 in. Calculate the volume of the ice-cream in cubic yards.

note: If you do know the answer can you please explain to me how you got it. Thank you.

2007-10-06 03:52:40 · 6 answers · asked by Anonymous

**I don't want the answer though, because the answers are in the back of my practice packet; I just want to know, how would you approach these problems?**

8) If t + u + v = 42 and 2u + 2v = 60, what is the value of t?
...(A) 12
...(B) 14
...(C) 18
...(D) 24
...(E) 27

16) If (x + y)^2 - (x - y)^2 = 84 and x and y are positive integers, which of the folowing could be the value of x + y?
...(A) 10
...(B) 12
...(C) 14
...(D) 16
...(E) 18

17) In the xy-plane, the line y = ax + 5 is parallel to othe line 3x + 8y = 10. What is the value of a?
...(A) -6
...(B) -8/3
...(C) -3/8
...(D) 3/8
...(E) 8/3

2007-10-06 03:37:47 · 5 answers · asked by The Girl 2

I have two triangles inside one another, and I don't know the bases of either of them. The base ratio is 4:9. I know that the sides of the smaller triangle are 4 and 3.2 and the sides of the larger triangle are 9 and 7.2.
Does anybody have ANY idea how I can find out the bases of the two triangles?!?

2007-10-06 03:31:15 · 3 answers · asked by Kess 2

find the equation of the circle which passes through the point A(0,1) , B(3,-2) and has its centre lying on the line y=x-2

please present workings

2007-10-06 03:16:05 · 6 answers · asked by Anonymous

2007-10-06 03:14:22 · 7 answers · asked by Anonymous

*2 stands i meant to be small and higher

2007-10-06 03:10:39 · 6 answers · asked by Anonymous

2007-10-06 03:09:40 · 5 answers · asked by Anonymous

the interior angles of an transversal line is given as (2x-10)degree and (65 -x)degree.
find the value of x? where the parallel line are m and n

2007-10-06 03:02:32 · 1 answers · asked by gunaroopam r 1

equation: x^2 = i

2007-10-06 03:00:09 · 8 answers · asked by Luthien 4

Kindergarden soccer
I usually have 6 players but one player can't make it. so how many minutes should each player play, to get equal time

2007-10-06 02:53:44 · 2 answers · asked by Parrot Bay 4

How would you classify this curve?
9y^2 + 16x^2 – 20y + 15x + 24xy = 0

Is it
a) an ellipse
b) a parabola
c) a hyperbola
d) none of the above

2007-10-06 02:44:14 · 5 answers · asked by Dr D 7

2007-10-06 02:39:43 · 5 answers · asked by Dr D 7

How do i work this out

2007-10-06 02:25:02 · 14 answers · asked by Anonymous

Doctors are studying the spread of measles. Using the variable y to represent the proportion of a population affected by measles, and using t to represent time (days) they find the rate of spread of measles through a city can be modeled by the differential equation dy/dt = 0.2(0.6-y).
Suppose initially 10% of a cities population has measles.
(a) Solve this IVP.
(b) How long will it take before half the population are affected by measles?
(c) What is the long term proportion of the population which will be affected by measles?

2007-10-06 02:07:12 · 2 answers · asked by Anonymous

answers
a)P is closed for addition but Q is not closed for addition
b)P as well as Q is closed for addition
c)Q is closed for addition for Q is not closed for addition
d)none

2007-10-06 01:43:01 · 1 answers · asked by Sowmyasri M 1

Cannot seem to figure out how to do this type of problem. Any help would be appreciated.

Y=(2 + 2/X) ^1/8

2007-10-06 01:14:10 · 4 answers · asked by Anonymous

summation n=1-infiniti
{[(-1)^(n-1)][ln(n)]}/n

2007-10-06 00:20:15 · 2 answers · asked by Anonymous

prove that:

[1/(1 - x²)] + [1/(1 - y²)] ≥ 2/(1 - xy)

given that x and y are positive real numbers.

2007-10-06 00:19:00 · 1 answers · asked by Akilesh - Internet Undertaker 7