Mathematics - 22 December 2007

I've found a gradient of -1 over 2/3 is this the same as 3/2 and if so why? I can remember something about having to convert the fraction when you get rid of the -1 to get 1 over but I'm not sure.

Thanks to anyone who can help, I'm preparing for a maths exam in a few weeks time.

2007-12-22 11:15:44 · 7 answers · asked by azuradragonfly 1

Only the clever mathemeticians will get this one....

2007-12-22 10:49:53 · 13 answers · asked by Adam H 1

0.5=2^x

find x

2007-12-22 10:43:54 · 6 answers · asked by Ade 1

2007-12-22 10:41:32 · 6 answers · asked by Anonymous

I remember reading somewhere about a diagram that had two overlapping circles such that the area of the intersection of the two circles was equal to that of the the non-intersecting part of each circle. Any idea what this is called, where I can find out about it?

2007-12-22 10:34:08 · 3 answers · asked by tateurrea 2

Write in Logarithmic form.
1) 3^4=81
2) (1/2)^4 = 1/16

Write in exponential form.
3) log(4)32=x
4) log(10)0.01= -2
5) log(a)a=1

(The numbers/letters in parenthesis are like littler, do you know, it kinda looks like exponents, but down, not on top :S) thanks!

2007-12-22 10:29:39 · 2 answers · asked by Anonymous

Scott set up a volleyball net in his backyard. One of the poles, which forms a right angle with the ground, is 6 feet high. To secure the pole, he attached a rope from the top of the pole to a stake 4 feet from the bottom of the pole. To the nearest tenth of a foot, find the length of the rope.

a. 4.5 ft.
b. 3.2 ft.
c. 52 ft.
d. 7.2 ft

2007-12-22 10:24:34 · 7 answers · asked by mommawe'regoingtohell 1

2007-12-22 10:23:36 · 7 answers · asked by jeannie 1

Eliminate the parameter t

x = 1 - 4cos(t) , y = -5 + 6sin(t)

I know that the answer is (x-1)^2 / 16 + (y+5)^2 / 36 = 1, but I don't know how or why that's the answer.

2007-12-22 09:33:27 · 7 answers · asked by Will 3

Find (A) the GCF and (B) the LCM of the following monomials.
1) 28, 35, 42
2) 9x^2y and 36xy^3

Solve the following equation.
x(x-2)(x+3)=0

MERCI BEAUCOUP!

2007-12-22 08:55:29 · 4 answers · asked by acetone33432 1

What is the dkg of this bag.

1 pound of this item = $35.00
You bought $7.18 of this item

What is the weight in dkg?

2007-12-22 08:54:06 · 4 answers · asked by gecko11o6 1

Solve the equation: 3n = 42
Show all your work

2007-12-22 08:39:09 · 3 answers · asked by MiSs MoM 2

2007-12-22 08:32:06 · 6 answers · asked by mom 1

3 MEN GO INTO A MOTEL. THE MAN BEHIND THE DESK SAID THE ROOM IS $30 SO EACH
MAN PAID $10 AND WENT TO THE ROOM.

A WHILE LATER THE MAN BEHIND THE DESK REALIZED THE ROOM WAS ONLY $25,
SO HE SENT THE BELLBOY TO THE 3 GUYS' ROOM WITH $5.

ON THE WAY THE BELLBOY COULDN'T FIGURE OUT HOW TO SPLIT $5 EVENLY BETWEEN 3 MEN, SO HE GAVE EACH MAN A $1 AND KEPT THE OTHER $2 FOR HIMSELF.

THIS MEANT THAT THE 3 MEN EACH PAID $9 FOR THE ROOM, WHICH IS A TOTAL OF
$27, ADD THE $2 THAT THE BELLBOY KEPT = $29.

WHERE IS THE OTHER DOLLAR?

2007-12-22 08:13:08 · 11 answers · asked by Justin N 2

Write the equations of all tangents to the curve y= -2x^2+12x-12 that pass thru (3,8)

2007-12-22 08:02:15 · 6 answers · asked by DJS 2

7√x + 13 = 6

a. √7
b. 49
c. 1
d. no solution

2007-12-22 07:57:12 · 8 answers · asked by mommawe'regoingtohell 1

f '(x)= ((4x)/(x^2+3))-1

2007-12-22 07:34:00 · 2 answers · asked by hello. 1

2007-12-22 06:29:05 · 3 answers · asked by SkySoul 2

2007-12-22 05:49:51 · 5 answers · asked by Cody 1

Given: segment AB=segmentAE, segment BC= Segment ED

Prove: AC = AD

2007-12-22 05:48:30 · 4 answers · asked by Garrett L 1

2007-12-22 05:45:27 · 6 answers · asked by Anonymous

Another important difference is that while t-test can be one tailed or two tailed, ANOVA does not have that distinction. Why do you think that is the case?

2007-12-22 05:31:47 · 3 answers · asked by Nancy L 1

2007-12-22 05:15:54 · 9 answers · asked by seremela 2

2007-12-22 05:14:27 · 2 answers · asked by joseph m 1

2007-12-22 05:04:13 · 6 answers · asked by Anonymous

2007-12-22 05:03:05 · 7 answers · asked by Anonymous

Im stuck with this. Every way that I do it, it doesnt seem to come up right. Please help!!

2007-12-22 04:48:02 · 5 answers · asked by Anonymous

2007-12-22 04:23:56 · 14 answers · asked by delightfulldee71 1

2007-12-22 04:16:03 · 8 answers · asked by delightfulldee71 1

2007-12-22 03:50:39 · 5 answers · asked by delightfulldee71 1