Mathematics - 20 July 2007

5xy + 2x = 3
solving for y

2007-07-20 13:34:17 · 16 answers · asked by Anonymous

Can someone explain the logic behind this problem? How do I solve it, and how did you figure it out?

Mike said that when he opened his book, the product of the page numbers of the two facing pages was 7007. Without performing any calculations, prove that he was wrong.

2007-07-20 13:24:44 · 9 answers · asked by Anonymous

7 = 7(2b+5)-6(b+8) ?

helpppppppp!

2007-07-20 13:14:24 · 14 answers · asked by Anonymous

how do I solve for x in the following equation: (x-1)(5x+3)?

2007-07-20 13:13:56 · 9 answers · asked by jumba 1

with the measurements of 10cm x22 cm x1 cm =220cm3
and 12cm x24cm x .5 cm =144cm3
what is the volume of the boat?

what in grams will sink it to the half way point?

is the wieght in grams needed to sink it halfway the same as half the volume?

2007-07-20 12:33:53 · 1 answers · asked by linifer74 1

The Pizza Palace found some pre-inflation menus. An 8" pizza was only $0.85 and a medium pizza was $1.15. The equation for this quadratic function is p = d2 - 3d + 45

Suppose the menu listed a "Colossal pizza" for $6.00. What would the diameter of that pizza be?

2007-07-20 12:18:37 · 2 answers · asked by victoria c 2

can someone show me how they come up with the quadratic formula? i dont mean the history, just show me how they come up with that formula.... thanks :)

2007-07-20 11:58:27 · 4 answers · asked by eia 1

2007-07-20 11:58:08 · 6 answers · asked by Anonymous

1. 2x - 3y = 12
4x + 6y = 24
--------------

Solve this sytem of equations using any method and give the value of the Y value only! y = _____

2. Coincident lines have an infinite number of points in common because they are the exact same line.

true or false?

3. Which of these equations are parallel lines?

x + 4y = 12
2x + 4y = 8

4x - 3y = 12
-3x + 4y = -24

3x + 4y = 12
-3x - 4y = -24

-4x + 2y = 8
¼x + ½y = 4

4. 2x + y = 8
x - y = 13

Solve this system of equations using the addition method

(2,4)

(16,3)

(7,-6)

(7,1)

2007-07-20 11:31:12 · 2 answers · asked by Sunshine 1

http://i181.photobucket.com/albums/x85/ctti_3/untitled-31.jpg

2007-07-20 11:28:31 · 6 answers · asked by biomes 1

Find the least common multiple (LCM) for each of the following groups of number. Use which ever method you wish. 12, 20, and35

2007-07-20 11:21:15 · 10 answers · asked by turlington999 1

For x ≥ 1, the surface area of revolution of y = 1/x is infinite, yet the volume is finite. How is it possible that it cannot even contain the paint required to paint it?

2007-07-20 11:20:38 · 5 answers · asked by Scythian1950 7

My word problem deals with the population explosion of cats.
Here it is:
If a mother cat has 4 kittens every 6 months and two are male and 2 are female, how many cats will there be in two years ?
The rules:
All months are 30 days long.
Pregnancy lasts 60 days.
All female cats become pregnant when they are six months old.
All animals live.
Bonus:
How many litters does each generation have?

2007-07-20 11:08:41 · 4 answers · asked by anonymous 1

Looking at a trapezoid like this:
http://content.answers.com/main/content/wp/en/b/b7/Isosceles_trapezoid.jpg

top - 10 ft
bottom - 16 ft
left side - 5 ft
right side - 5 ft

The question:

What is the distance between the top and bottom?
A. 3
B. 4
C. 5
D. 10
E. 16

Please explain your answer.

2007-07-20 11:07:03 · 8 answers · asked by sameperson247 2

if measure AC is 12, i need to find out measure AB and CB.

how do i do that with knowing angle A is 90 degrees and B is 60 and C is 30???

2007-07-20 11:05:26 · 6 answers · asked by Anonymous

Hi, i'm a freshman and im going into Algebra 2 next year. I was wondering if there are any sites or any info you can post on what to expect and stuff to prepare. Thanks

2007-07-20 10:59:57 · 1 answers · asked by Anonymous

1. Which of the following statements about parallel lines is NOT correct?

Parallel lines have the same slope

Parallel lines do not intersect ever.

Parallel lines have one point in common and thus have only one solution.

Parallel lines are an equal distance apart at all times.

2. Which of the following equations represent perpendicular lines?

y = ½x + 3
y = -2x - 2

y = 2x + ¼
y = 2x - 4

y = 2x + 4
y = ½x - 2

2x + 3y = 6
-½x + 4y = 8

3. 6x - 2y = 24
The slope of this line is _____?

4. 6x - 2y = -24
The y-intercept of this equation is ____?

5. y = -½x + 4
A line that is perpendicular to this line would have a slope equal to ____?

6. y = 4x - 2
A line that is parallel to this line would have a slope of ______?

7. Perpendicular lines have negative reciprocal slopes, so if one line has the slope of ¼, the other line will have the slope equal to -4
true or false?


8. Use the substitution method for this system of equations:

y = ½x + 4
2x + 4y = 8

(2,5)
(-2,3)
(0,2)
(4,0)

2007-07-20 10:51:08 · 3 answers · asked by Sunshine 1

If a hexagon is 12 feet in diameter, how many square feet are contained therein?

2007-07-20 10:27:20 · 4 answers · asked by N C 1

2007-07-20 10:16:24 · 13 answers · asked by Danemorgan7 1

when i know all the angle degrees in the triangle, how do i find out the measures of the sides?? only if i know like one of the measures???

say if i know all the degrees in the triangle and its 15, 75, and 90, and one of the outside measures is 20 m. how do i find out what the other two measures are???

someone please help!! greatly appreciated!! =)

2007-07-20 10:10:31 · 5 answers · asked by Anonymous

2007-07-20 10:08:29 · 5 answers · asked by Anonymous

What is the slope of the line containing the points (-1,4) and (3,2)?


Choose the best description for graphing the point (3,-4).


Put the following equation in slope intercept form 2x - 5y = 10.


What is the slope of the line with equation y = (1/2)x -3?


What is the y intercept of the equation y= (2/3)x -6?


What kind of line is created when you graph the equation x=2?

2007-07-20 10:00:08 · 4 answers · asked by Jewman 1

2007-07-20 09:49:57 · 6 answers · asked by marlon s 1

label the graph of each function. (include amplitude and period of each). please help with this one, i really don't get how to do it! thanks!

2007-07-20 09:24:56 · 6 answers · asked by Anonymous

Write the perimeter of the rectangle as a simplified polynomial. Then factor this polynomial completely.

7x + 40


x2 + 7x

(2x + 4)(x + 10)
(x + 4)(x + 10)
2(x + 4)(x + 10)
2(x + 7)(x + 7)

2007-07-20 09:16:16 · 4 answers · asked by Anonymous

2007-07-20 09:11:42 · 7 answers · asked by Lydia S 1

2007-07-20 08:55:28 · 6 answers · asked by jennifer f 1

How are these two equations, 4y - x = 8 , and y = 1/4x + 2 , the same? Please show me the steps.

2007-07-20 08:38:47 · 12 answers · asked by Daphne 1

geometry

2007-07-20 08:36:13 · 8 answers · asked by jennifer f 1

please show me the steps:)

2007-07-20 08:30:51 · 11 answers · asked by Daphne 1