Mathematics - 5 October 2006

Let x and y be two numbers whose average is 13 and whose product is 744. Find the value of 2x-3y

2006-10-05 04:39:02 · 13 answers · asked by caramel_blush 1

can anyone help me find the nth term for this
3 8 17 30 47

2006-10-05 04:28:51 · 8 answers · asked by luke p 1

What is the perimeter of a rectangle dilated to half the size?
a. 70 m2
b. 35m2
c. 34 m
d. 17m

2006-10-05 04:07:44 · 9 answers · asked by cave_21man 1

f(x,y,z)=xyz on x^2 + 2y^2+ 3z^2=6 (hint: the answer is: max=2/sqrt3 and min=-2/sqrt3)

2006-10-05 04:05:20 · 2 answers · asked by Ann T 1

Find the interest paid on a loan of $800 at 8.5% interest for 2 years.

2006-10-05 03:57:18 · 16 answers · asked by Anonymous

I have been told its to do with the arabic people that created the numbering system. Is this true? (though obviously it can be mistaken for a 1 as well, so this is a sensible answer).

2006-10-05 03:57:10 · 19 answers · asked by Guy H 1

A father was walking with his father and his son in the park. A stranger asked them what there ages were. The father replied:" my son is as many weeks as my grandson is in days. my grandson is as many months old as I am in years. we are 100 years put together". find their ages???

2006-10-05 03:50:13 · 3 answers · asked by jhancytomy 2

2006-10-05 03:25:40 · 17 answers · asked by ferwag200508 1

a)true or b)false

2006-10-05 03:20:56 · 8 answers · asked by cave_21man 1

2006-10-05 03:20:28 · 8 answers · asked by ferwag200508 1

a)true or b)false

2006-10-05 03:16:48 · 8 answers · asked by cave_21man 1

2006-10-05 03:10:25 · 10 answers · asked by arun r 1

the soln. given was:

sin 75+ cos(90-15)
sin 75+ sin 15
2sin45 * cos 30

i don't get the last step

pls. explain it to me

2006-10-05 03:09:59 · 5 answers · asked by tut_einstein 2

how should we find the angle between the sides of a triangle if only the sides are given.
eg: AB=3 BC=4 CD =5.FIND ANGLE A B AND C in triangle ABC.
plss help

2006-10-05 03:08:26 · 5 answers · asked by theking 2

If i add 2 irrational numbers together..it is possible to get an answer that is not irrational. But i cannot find an example for it. Can some1 help pls?
(Irrational numbers are those that cant be expressed as fraction...eg square root 2, square root 3, pi,....)

2006-10-05 02:52:45 · 8 answers · asked by NeedHelpGivesHelp 2

2006-10-05 02:44:20 · 18 answers · asked by Anonymous

help!

2006-10-05 02:44:17 · 3 answers · asked by t_e_j_smith 1

Find two numbers whose difference is 5 and the difference of their squares is 65.

Please answer this using the ff. methods:
Defining the variables;
Thought processes;
equation; and
final anwer.

You can use the ff. to solve this:
Square root property;
factoring;
completing the square; or
quadratic formula.

This is about PROBLEM SOLVING INVOLVING QUADRATIC FORMULA.

The variable is only ONE.

THANKS FOR ANSWERING!!!

2006-10-05 01:58:54 · 8 answers · asked by Anonymous

Specific example:

1/6 = (3/4)^n

I'm sure I remember a relatively simple equation!

HELP!

2006-10-05 01:58:25 · 8 answers · asked by mr_sporty_spice 2

A number is 16/15 less than its multiplicative inverse. Find the number.

Please answer this using the ff. methods:
Defining the variables;
Thought processes;
equation; and
final anwer.

You can use the ff. to solve this:
Square root property;
factoring;
completing the square; or
quadratic formula.

This is about PROBLEM SOLVING INVOLVING QUADRATIC FORMULA.

The variable is only ONE.

THANKS FOR ANSWERING!!!

2006-10-05 01:55:59 · 6 answers · asked by Anonymous

Find the equations of the circles:
a) with the centre (-2,3) and radius 6
b) with centre (3,0) and which passes through the point (5,4)
c) with centre (3,-1) and which touches the y-axis.
d) find the centre and radius of the circle x^2 + y^2 - 4x + 8y - 80

Explanations would be very helpful because I mainly want to understand how it is done.

2006-10-05 01:54:24 · 3 answers · asked by Anonymous

2006-10-05 01:04:10 · 4 answers · asked by Anonymous

2006-10-05 00:51:30 · 4 answers · asked by Anonymous

provide integer solutions for a right angled triangle where each side is a perfect square

2006-10-05 00:46:56 · 6 answers · asked by Mein Hoon Na 7