Mathematics - 1 August 2007

If AB II CD and BC II AD, find m<1, m<2

this is the picture
http://aycu28.webshots.com/image/24107/2001267293574182637_rs.jpg

2007-08-01 08:11:34 · 6 answers · asked by Mike Gaol 1

1. x^2 - 16 is an example of a difference of two _______?

2. Solve by factoring: One of the solutions to the quadratic equation x^2 + 3x - 28 is x = -7. What is the other solution? (Type only the numerical value of the other solution. Do not use any variables or skip any spaces.) For the other solution, x = ?

2007-08-01 08:10:12 · 4 answers · asked by Anonymous

a, a table is priced at £12 but during a sale, all prices are reduced by 20%. how much does the table cost now?

b, the height of a tree increases by 15%. if it was 3 meters high before, how high is it now?

how do i calculate theses? what are the stages?

2007-08-01 08:03:26 · 14 answers · asked by . 1

1. Factor:
3y^2 - 4y - 20
Which of the following is one of the factors?

A. (3y - 10)
B. (y + 3)
C. (3y + 2)

2. What is the Greatest Common Factor for the given polynomial?
5x^3y^2 + 15xy^2 + 25x^2y^3

A. 5x
B. 5xy
C. 5xy^2
D. prime

3. Factor:
12x^2 - 21

A. (6x + 3)(2x + 7)
B. (12x + 7)(x + 3)
C. (3x + 7)(4x – 3)
D. 3(4x^2 - 7)

2007-08-01 07:48:42 · 5 answers · asked by Sunshine 1

2x^2 + 7x-5=0

(If there is more than one solution, separate them with commas.)



I am absoutly clueless on how to do these types of questions, so any help will be greatly appreciated!

2007-08-01 07:46:09 · 2 answers · asked by Aimee R 1

please show all work

2007-08-01 07:38:50 · 1 answers · asked by Anonymous

What is the distance between A(-1, 2, 3) and B(4, -5, 6), rounded to the nearest tenth?

2007-08-01 07:37:29 · 2 answers · asked by Anonymous

How many tablespoons is 4.5 oz or how many tablespoons is 100g? I am mixing sea salt for my hermit crabs.

2007-08-01 07:30:28 · 3 answers · asked by Serena 3

If 25% of 100 is 75 then why cant i devide 100 by 1.25 and get the same number

2007-08-01 07:23:11 · 4 answers · asked by corys_fat 1

The cost of producing a number of items x is given by c=mx+b in which b is the fixed cost and m is the variable cost (the cost ofproducing one more item. If the fixed cost is $40 and the variable cost is $10, write the cost equation.

2007-08-01 07:17:09 · 3 answers · asked by Darban & LaJuana M 1

a.) If , y=√x +2, fill in the following table for x = 0, 1, 2, 3, 4. Round to three decimal places where necessary.

b) Explain why no negative values are chosen as values to substitute in for x.

2007-08-01 07:02:53 · 3 answers · asked by Anonymous

How many 12-oz cans of apple juice would it take to give 60 people one 8-oz serving of apple juice each?

2007-08-01 06:58:46 · 7 answers · asked by Chase L 1

Mathematical symbols like the square root sign (instead of sqrt(x) or x^(1/2)), pi, etc.

2007-08-01 06:50:28 · 7 answers · asked by Aquaboy 6

#6. (4x-2)/5=10
x5 x5(multiplication property)
4x-2=50
+2 +2( reflexive property of equality)
4x=52
1/4(4x)=1/4(51)multiplication property)
x=13 (multiplicative inverse)

#7.


-x/3 -5=2x
3(-x/3) -5=3(2x) (multiplication property)
-x-5=6x
+x +x (reflexive property of equality)
-5=7x
1/7(-5)= 1/7(7x)(multiplication property)
-.7=x (multiplicative inverse)

2007-08-01 06:49:38 · 3 answers · asked by Anonymous

2007-08-01 06:49:20 · 6 answers · asked by Anonymous

1-(9z+2y) / (2z) + (9z - 4y) / (5z)

2007-08-01 06:46:56 · 5 answers · asked by Brandon 1

How do I take the intergral of (8x+11)/(x^2+9) dx?

2007-08-01 06:43:11 · 4 answers · asked by jennifer 1

Also how important is mathematics to you, how has mathematics influced your life and what is the greatest joy you get from doing mathemactics? What has been your greastest mathematic acheivement?

2007-08-01 06:40:07 · 6 answers · asked by Anonymous

2007-08-01 06:32:13 · 8 answers · asked by Jack L 1

Hi,

I am trying to average a set of vectors using slerp, but I couldn't figure out the algorithm for it.

I tried using 4 vectors obtained from each side of a pyramid where base is a perfect square. So my vectors in this case is:

{[0,-0.946941,0.321407], [0.946941,0,0.321407], [0,0.946941,0.321407], [-0.946941,0,0.321407]}

and the angles between them:

{35.6355, 35.6355, 35.6355, 35.6355}

I tried using this: http://en.wikipedia.org/wiki/Slerp

How can I combine these 4 vectors so I get the value [0,0,1]?

The reason is, I want to implement a weighted averaging method. So if I want, I could pass the area of polygons as weights to determine the final averaged normal, instead of add them all and divide by the number.

Thanks for the help!

2007-08-01 06:29:56 · 2 answers · asked by Léon 1

For the following function, C computes the cost in millions of dollars of implementing a city recycling project when x percent of the citizens participate. C(x)=(1.5x/100-x)

a.) Using this model, approximately what is the cost if 40% of the citizens participate?

b) Using this model, estimate the percentage of participation that can be excepted if $5 million is spent on this recycling project? Set up an equation and solve algebraically. Round to the nearest whole percent.

2007-08-01 06:08:59 · 4 answers · asked by Anonymous

LCM of 50 and 60?

estimate
7/8 +3 1/4=

estimate

5 1/9 - 2/3=

2007-08-01 05:49:16 · 7 answers · asked by pasi 1

2007-08-01 05:43:24 · 3 answers · asked by Jack L 1

The Point With CO-ordinates (1,3) and (3,9/2) lies on the line with the equation

ax-by = 2

a)find the value of 'a' and 'b' ?
b)Find the Gradiant of the line ?

2007-08-01 05:27:34 · 5 answers · asked by vishnu 1

1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 + 12 + 13 + 14 + 15

+ 16 + 17 + 18 + 19 + 20 + 21 + 22 + 23+ 24 + 25 + 26 + 27 +

28 + 29 + 30 + 31 + 32 + 33 + 34 + 35 + 36 + 3x+ 38 + 39 +

40 + 41 + 42 + 43 + 44 + 45 + 46 + 47 + 48 + 49 + 50 + 51 +

52 + 53 + 54 + 55?

2007-08-01 05:25:09 · 6 answers · asked by Anonymous

Express as a single fraction in lowest terms

(2t-7y) / (3t) + (5t+9y) / (2t) +1

2007-08-01 05:24:16 · 4 answers · asked by Anonymous

2007-08-01 05:21:29 · 3 answers · asked by Anonymous

Find the length of a side of a cube if the volume is 800cm^3. Round the answer 3 decimal places

2007-08-01 05:04:37 · 13 answers · asked by ascension43930 1

Taylor Series and Calculus

2007-08-01 04:55:35 · 3 answers · asked by persistentd 1

If y is given by a composite function of x, use the Chain rule to show that

d^2y/dx^2 = d^2y/du^2 * (du/dx)^2 + dy/dy * d^2u/dx^2

How does one differentiate dy/dx = dy/du * du/dx to get the above?

2007-08-01 04:52:20 · 3 answers · asked by Anonymous