Mathematics - 1 October 2007

so i can explain to my son. I never took Pre-Algebra

2007-10-01 11:13:39 · 5 answers · asked by MELANIE L 1

Determine any relative maxima or minima of the function and the intervals on which the function is increasing or decreasing.

f(x) = x^2 -2x +3

2007-10-01 10:59:03 · 4 answers · asked by Anonymous

Write a slope intercept equation for a line passing through the given point that is paraelle to the given line. Then write a second equation for a line passing through the given point that is perpendicular to the given line.

(8, -2), y = 4.2(x - 3) + 1

2007-10-01 10:56:32 · 5 answers · asked by Anonymous

Is that 7x?

2007-10-01 10:55:28 · 10 answers · asked by Nicole W 2

2a² + 6a=8 , a=?

2007-10-01 10:55:27 · 4 answers · asked by iHeartChem 2

If AD = 2x + y, BC = 7y - 2x, and x = 3, find AD

plz explain....is it like this
2x + y
2(3) + y
6 + y
if it is like this^ what is 6+y equal to?

2007-10-01 10:51:37 · 9 answers · asked by Anonymous

1. 5x+9-4x=17

2. x+10-7x=-44

3. 10+5x+6x=98

4. x+2-7x=-34

5. -2x-6+x=6

6. 1=x-5x+9

7. 35=-4x+7x-1

8.10+3x-7x=10

9.-3+x+3x=41

10.5-5x-3x=-51

11. 4x+8-x=8

12. 3=6x-4x-9

13. -6x+2+x=17

2007-10-01 10:50:13 · 2 answers · asked by Anonymous

2007-10-01 10:45:22 · 1 answers · asked by Anonymous

2007-10-01 10:44:58 · 4 answers · asked by navy15seal 1

A spherical soap bubble with radius of 2 cm lands on a flat surface. Its shape changes to that of a hemisphere. Assuming that none of the air inside the bubble escapes, determine the radius of the hemisphere.

2007-10-01 10:42:00 · 2 answers · asked by Anonymous

a car started out from mephis toward little rock at the rate of 60 km/h. a sceond car left from teh same point two hours later and drove along the same route at 75 km/h. how long did it take for the second car to overtake the first?

please EXPLAIN your answer<3
and fyi, im doing my own homework, i got 80 minutes for this problem, but im almost sure its rong and i dont know why...

2007-10-01 10:39:29 · 6 answers · asked by suni 5

calculate the rate of change of the volume of a cube (V) with respect to its surface area (A)

2007-10-01 10:31:12 · 1 answers · asked by Mr. Vill 1

y=1+2 x+6 x2.

Find the slope of the tangent line to the parabola at the point where x=4.

2007-10-01 10:29:34 · 3 answers · asked by Ar J 2

Could someone help me with this math question? I've been trying all day to figure it out. I would really appreciate it thanks.

Tony leaves his house at 10:00 am and drives to his sister’s house. If the drive is at an average speed of 93km/h and the distance between their homes is 238.5 km at what time will he arrive at his sister’s house?

2007-10-01 10:28:13 · 8 answers · asked by ANdrea21 3

2007-10-01 10:26:04 · 10 answers · asked by sameerferrari 3

2007-10-01 10:25:31 · 4 answers · asked by Anonymous

Ok, this problem is hard. And I need help on it. Alright here is the question:

Complete the Magic Square. The magic sum is 1 1/4.

Here is the magic square. When you add the to the right on each column the answer should be 1 1/4. And when you add down on each down column, it should also all be 1 1/4. Here is the diagram I drew in paint. It's exactly like the diagram I have on my sheet.

http://i21.tinypic.com/n6fe5s.jpg

There has to be a number on every blank square. Please help

2007-10-01 10:18:27 · 5 answers · asked by Chocolate Bunt 2

is there a way to just look at these and know the answer?

I'm completely stumped.

2007-10-01 10:18:02 · 1 answers · asked by Ar J 2

Differentiate.
y=e^(6 x)/(1+3 x)
y'(x)=

Differentiate.
g(x) = 3sqrt(x)e^x
g'(x)=

2007-10-01 09:58:25 · 2 answers · asked by Anonymous

2007-10-01 09:51:29 · 2 answers · asked by jjpierce10 1

without using a grpahing calc and table of values

2007-10-01 09:50:00 · 3 answers · asked by maximumheat_89 1

I am helping my daughter with an Egypton project and we would like to make a peramid. But we want to do it right. Can any one tell me where I can find the info on the math behind all the sides and hight and angles. I know they were presise but I want to know how!

2007-10-01 09:45:47 · 6 answers · asked by Marvelgirl 3

to america after he feard they will induct him into nazi army into world war 2? this is a most confusing statement. why did he run away from nazi germany when he feared he will be inducted into army? he disliked millitary service? he was jewish? he was a christian who disliked nazi german attitude towards jews? also tell me if he was indeed jewish, based upon your knowledge and not just these very confusing lies from wikipedia. thank you.

2007-10-01 09:44:52 · 3 answers · asked by tony 3

Use the distributive property to rewrite the expression.

12(12+3)

(ex) 6(1+4) = 6 x 1 + 6 x 4


Determine the place value of the digit 4 in the whole number.

5480


Determine the place value of the digit 5 in the whole number

79,050,000


Write the whole number in words.

3,165


Write the whole number in words.

47,033,107


Write the whole number in standard form.

Seven million, twelve


Write the whole number in standard form.

Three thousand, three hundred seventy


Write the whole number in expanded form.

20,215


Write the whole number in expanded form.

39,689,345


Add

121,742 + 57,279 + 6586 + 426,782



Find the perimeter of the rectangle measured 21 miles by 10 miles

A homeowner is considering installing gutters around her home. To help her estimate the cost of gutters find the perimeter of the edge of her roof: measured 60 feet by 45 feet.

Make sure to label!


Subtract

62,222 - 39,898


Write the problem out and the answer to get full credit.

Find 108 less 36.

2007-10-01 09:43:53 · 1 answers · asked by Anonymous

please help

2007-10-01 09:23:05 · 4 answers · asked by Anonymous

y=1-6 x-6 x^2
at the point (1,-11).

y= x/ (3-x)
at point (0,0)

methods would help drastically

2007-10-01 09:21:51 · 2 answers · asked by Ar J 2

A farmer has rectangular garden plot surrounded by 488 ft of fence. Find the dimensions of the garden if its area is 12180 sq ft.??

2007-10-01 09:12:58 · 7 answers · asked by Anonymous

2007-10-01 09:04:08 · 5 answers · asked by Will 2

y - intercept (0, 1/2), slope is 3/4.

I thought it would be y= 3/4 x + 3,
but the answer book says
y=3/4 x + 1/2

where did they come up with 1/2 instead of 3?
ahhhhhhhhhhhhhhhhh
thanks

2007-10-01 09:01:14 · 7 answers · asked by Boo Radley 4

So I am going to do my best to explain this problem, but feel free to add any variables I may have left out...

A hotel has n elevators and m floors. Each floor has a height of h.

Each elevator travels at some constant velocity v (for convenience let the units of v be ft/s). Assume the elevator does not stop until it reaches you.

Assume that the elevators are on random floors when you push the button, and the CLOSEST elevator travels downward when called from a floor below and upward when called from a floor above.

How many elevators are needed in order for the expected waiting time on the first floor to be 10 seconds?

If you can generalize the problem even more, show me how.

2007-10-01 08:53:30 · 3 answers · asked by whitesox09 7