Mathematics - 6 September 2007

store sold 65 calculators making $3875 One was $15 and other was $67 . How many of each type did they sell ?

2007-09-06 06:11:34 · 4 answers · asked by kathy b 6

2007-09-06 06:10:34 · 10 answers · asked by HammerDown1990 1

Well ive got some homework and i dont know if its right or not, i cant check because my teacher took in our books (with ALL of our working on it) so please help

and dont be offensive. maths is difficult. i would appreciate some help.

1.On a map of scale 1:100 000 the distance between Tower Bridge and Hammersmith bridge is 12.3cm . What is the actual distance in KM?

am i right? 12.3 x 100 000 = 1230000
actually is it divide? PLEASE HELP!

and

2. The distance from herford to st albans is 32km. how far apart will they be on a map scale 1:50 000

HELP!

thank you

Teresa.

2007-09-06 05:58:39 · 12 answers · asked by Anonymous

sqrt(x)

Is it a "square root function"? Or exponential, since sqrt(x) = x^(1/2)? Or would it be more proper to call it an "inverse quadratic" since y=sqrt(x) is the inverse or y=x^2

2007-09-06 05:51:25 · 2 answers · asked by de4th 4

2007-09-06 05:50:23 · 4 answers · asked by Renee V 1

2007-09-06 05:39:45 · 12 answers · asked by nisha 2

You have 8*8 matrix & 6*1 matrix. 8*8 matrix divide for only once (Eg:- 7*8 & 1*8) ; By using this create the 7*9 matrix.

2007-09-06 05:29:10 · 3 answers · asked by amit_pawar2007 1

Hi everyone! I just wanted to know how to expand brackets when you have an equation like 4x-(x+3)=x-3. It's just mainly the first part of the equation that I'm stuck on so if you could please find the time to help me, it would really be appreciated. Thanks!!!

2007-09-06 05:14:28 · 10 answers · asked by nisha 2

Combine like terms to simplify the algebraic expression: 4x2 + 2x + 5x2 + 3x

14x3

9x2 + 5x

6x2 + 8x

9x2 + 6x
Combine like terms to simplify the algebraic expression: 4a + 5b + 2a + 3b

6a + 8b

14ab

9a + 5b

7a + 7b

Combine like terms to simplify the algebraic expression: 2x + 7y + 8 + 3x + y - 1

13xy + 7

5x + 7y + 7

5x + 8y + 7

5x + 8y + 9
Match the expression with the word phrase:
6 less than twice a number.

2n – 6

2n + 6

6n – 2

6 – 2n
Match the expression with the word phrase:
The difference between a number and 4.

4 – n

4n

n – 4

n ÷ 4

2007-09-06 05:14:09 · 3 answers · asked by Anonymous

2-4x < 6 or 3 -x > 9

2[ 8 - 3 (y-2) ] = 5 - 2 (y = 4)

2007-09-06 05:00:08 · 4 answers · asked by tinabug 1

2007-09-06 04:52:11 · 12 answers · asked by redbone001 1

15 1/3 - 7 4/5
18 1/5 - 3 7/8

2007-09-06 04:47:04 · 4 answers · asked by Jolene 2

Iv got this function 4x^4 -6x^2 +3

How to draw this function, to do that i need to calculate x1 x2 so how do u calculate those points so i draw it


Its not allowed to use a scientific calculator

2007-09-06 04:25:08 · 5 answers · asked by Anonymous

Solve the equation: 5n = 75
Show all your work









Select the example which shows all the correct steps to solve for n.

















Select the example which shows all the correct steps to solve for n.

2007-09-06 04:20:51 · 12 answers · asked by Anonymous

Find the coefficients a, b, and c such that the parabola ax2 + bx + c passes through the points (0,6), (2,−2), and (3,0).

sorry..i kno its extremely easy but i haven't been brushing up my math...how would you carry out this question? any help would be greatly appreciated!! thx!

2007-09-06 04:11:45 · 6 answers · asked by Anonymous

2007-09-06 04:11:02 · 4 answers · asked by CelticMoonGoddess 2

1.) x^2 -25=0

2.)x^2 + 8x=0

3.)4x^2 - 5x=0

2007-09-06 03:25:36 · 10 answers · asked by Anonymous

2007-09-06 03:10:57 · 7 answers · asked by 15fsg546rge1rrheljh45hjr90459ty3 3

i am used to solving quadratic equation with the quadratic formula, but i had a little problem with these quadratic equation.

here:
x^2 -25=0

here is another one
x^2 + 8x=0

my problem is.... do i have to use the formula to work this out??
Explain....In simplest way...Thanks!

2007-09-06 03:08:28 · 12 answers · asked by Anonymous

2007-09-06 03:06:35 · 8 answers · asked by alanasusancohen 1

2007-09-06 02:58:22 · 5 answers · asked by Calchas 3

2007-09-06 02:57:49 · 7 answers · asked by fvsdf s 2

2007-09-06 02:43:23 · 4 answers · asked by Eric 2

2007-09-06 02:41:37 · 5 answers · asked by Michael Ray G 1

2007-09-06 02:39:11 · 5 answers · asked by Anonymous

2007-09-06 02:21:03 · 3 answers · asked by Anonymous

(-4,9) and (-4,14)

2007-09-06 02:08:25 · 5 answers · asked by mandy 1

Identify curve by finding a cartesian equation for the curve:

r=csc(theta)

I know that csc=1/sin and csc=r/y. But I think it involves some sort of trigonomic trick in order to complete the problem. Any help is greatly appreciated!

2007-09-06 01:52:58 · 2 answers · asked by behindthemask 2

verify the conditions of the Rolle's theorem. if the conditions are satisfied, find c.

1. f(x) = sin2x; [0, 1/2π]

2. f(x) = x^3 - 2x- x + 2; [1,2]

2007-09-06 01:46:38 · 4 answers · asked by dee j 2

x4 is x to the 4th power, x3 is x to the 3rd power, -14m4 is -14m to the 4th power...it's under the topic remainder theorem

2007-09-06 01:32:48 · 3 answers · asked by chielala 3