Mathematics - 30 August 2007

Write the equation of the line with slope - 1/2 and y-intercept (0, 3). Then graph the line.

2007-08-30 05:49:01 · 2 answers · asked by Anonymous

I am having problems memorizing my multiplication tables for 4th grade. I am very smart and one of top students in my class in all areas except for this one. For some reason I just can't make it stick. I have tried most common methods such as flash cards, games etc.

Does anybody have some different methods or tricks for memorizing.

2007-08-30 05:47:41 · 13 answers · asked by Anonymous

Three night guards A, B and C blow their whistles at intervals of 8, 15 and 18 minutes respectively. If they blow it together at 11pm when next are they expected to blow together. Show workings

2007-08-30 05:38:25 · 9 answers · asked by kandi4eva_13 1

13) It takes Stan 3 hours to mow the lawn and it takes Roger 2 hours. How long would it take them if they worked together?

17) 30 % of what number is 70?

25) The length of a rectangle is 5cm more than the width. The area is 150cm^2. Find the length of the width & Length.

27. A specialty food store mixes Brazil nuts and cashews to get misxed nuts that they sell for $5.00 per kilogram. If the Brazil nuts cost $4.50 per kilogram and the cashews cost $6.00 per kilogram, how many kilograms of each should be combined to give 30 kilograms of mixed nuts.

29) Frank needs 5 hours to rake his lawn. But when Sylvia helps him they can do the job in 3 hours. How long would it take sylvia to rake the lawn by herself?

33) The perimeter of a rectangle is 40cm, and the area is 64cm^2. Find the dimensions

35) I am thinking of two consecutive even integers. The sum of their squares is 340. What are the integers

2007-08-30 05:33:15 · 7 answers · asked by Anonymous

Write an equation to model the relationship in each table:

Number of tickets: | Total Cost:
2 | $7
4 | $14
6 | $21

I found out that 1 ticket costs $3.50 but how can I write an algebraic equation?!?!

2007-08-30 05:30:04 · 8 answers · asked by Anonymous

If a1 = 1 and

for every positive integer n, the eqn below holds
http://rogercortesi.com/eqn/tempimagedir/eqn1830.png

then a100 equals ?

My soln :
---------------
we have
a1=1

From the eqn putting value of a1 i got

a2=5

further putting value of a1,a2 i got

a3=21

but i need to find a100 .

How ?

2007-08-30 05:28:00 · 3 answers · asked by calculus 1

Solve and graph the solution set. 7x + 2 >= 6x + 18

2007-08-30 05:27:23 · 3 answers · asked by Anonymous

For the quadratic function f(x) = 5.93x^2 - 3.135x - 5.62, find the minimum or maximum value, the x-intercepts, and the y intercept.

1. Does this have a maximum or does it have a minimum value?

2. The x coords of the x intercepts are:

4. The Y intercept is:

2007-08-30 05:27:17 · 2 answers · asked by dustin_r_85 1

Graph the solution set of x <= 4.

2007-08-30 05:25:59 · 11 answers · asked by Anonymous

please include step by step instructions and show the work.

2007-08-30 05:15:12 · 7 answers · asked by Anonymous

Please give detailed response.

2007-08-30 05:02:11 · 3 answers · asked by Dom 1

x^3 - 2x^2 - 5X + 10 = 0

Not sure how to solve this. How do you do it and what's the answer? Thanks!

2007-08-30 04:51:07 · 3 answers · asked by justme 4

(3z4 - 8) 2

2007-08-30 04:38:24 · 2 answers · asked by dianajiminez 1

statistics problems

2007-08-30 04:34:26 · 9 answers · asked by BL S 1

I was wondering...how do I do this?

Find the measure of the angle, its supplementary, and complementary.
The supplementary is 3 times the amount of 8 times of its complementary.

I just don't get how to do this...Please help!

2007-08-30 04:30:50 · 5 answers · asked by ykk3416 1

4 8 15 16 23 42
Any idea? Here is where is originated: http://i20.photobucket.com/albums/b238/sr111/series.png

2007-08-30 04:27:35 · 1 answers · asked by ǝɯɐuɹǝsn ɔıɹǝuǝƃ 3

Can you help me by solving these (or at least a few?) and show me your steps?


2) 49x^2 - 16y^2

4) 16 - x^4

6) 4x^2 + 9

7) 2x^2 - 5x - 3

8) 3x^4 - 6x^3 - 4x^2 + 8x

2007-08-30 03:52:07 · 9 answers · asked by Anonymous

2007-08-30 03:49:45 · 3 answers · asked by Anonymous

Draw graphs in their time and frequency domains.
Time domain
h(t)=5Cos(2pi(6)t)

Frequency domains
h(f)=5/2(sigma)(f-6pi)+5/2(sigma)(f+6pi)

2007-08-30 03:44:40 · 6 answers · asked by himself202 1

f(x)=(x+2)/3x

would it just be f(x)= -3x/(x-2) ??

2007-08-30 03:39:25 · 1 answers · asked by em.four 2

$32.09 / 20% = ????? i dont have a calculator so i cant really do this. i knw im an idiot, so sue me Dx

2007-08-30 03:23:35 · 14 answers · asked by Anonymous

How do I evaluate this?

Thank you for the help.

2007-08-30 03:23:11 · 4 answers · asked by Anonymous

9 ( ) (70.5 ÷ 0.5) = 1,269

use check box place of ()

2007-08-30 03:00:14 · 4 answers · asked by neal_108_999 1

One, or more than one?

2007-08-30 02:57:02 · 2 answers · asked by RogerDodger 1

A. Continuous
B. Discrete

2007-08-30 02:35:07 · 3 answers · asked by zginder 3

i know there's a difference between them, but i really can't pinpoint what it is exactly...can you give and example the difference between the two algorithm is really obvious?

2007-08-30 02:18:29 · 1 answers · asked by ioLLo 2

How do I complete the square for this expression:

(x^2 + 10x)

2007-08-30 02:16:50 · 4 answers · asked by chrizzle08 2

3.14.....

2007-08-30 02:14:05 · 22 answers · asked by Tzahy Z 1

and travels toward San Francisco at 60 mi/h. If the two cities are 380 miles apart, how many hours will it take for Mary to meet Phil? Write an algebraic equation and solve.

2007-08-30 02:07:23 · 7 answers · asked by jdub 1

a. law of sines
b. basic trig
c. law of cosines
d. pythagreans therom

how would you figure out which one to use ??

2007-08-30 02:06:31 · 6 answers · asked by Anonymous