Mathematics - 15 December 2007

Please give a mathematical example. Thanks.

2007-12-15 05:50:39 · 4 answers · asked by Anonymous

Please Simplify The Following Expression...
5(3x-2)-4-2(4=x)

2007-12-15 05:49:14 · 12 answers · asked by bumble 3

What is the percentage strength of a solution that is made by adding 200 ml of purified water to 600 ml of a 25% solution?

My answer is 75%, but my workbook answer states it is 18.75%. I have no idea how that answer was achieved. Help! Thank you!

2007-12-15 05:42:11 · 2 answers · asked by TheCoffeeDiva 7

Find the area between a parabola y=-4 x^2 + 0 x +64 and the x-axis.
HINT: Find the intersection points of the parabola with the x-axis first.


Area=

2007-12-15 05:40:16 · 3 answers · asked by Anonymous

2007-12-15 05:33:59 · 11 answers · asked by ally 1

An equilateral triangle has an area of 9 times the sq root of 3.
How many inches is the perimeter?
9
9 times the sq. root of 3
18
18 times the sq. root of 3
What's the image of (5, -2) when it's reflected across the line y=-x?
5,10
5,1
-5,-10
-5,-1
What's the next # in the sequence? 0,1,-1,3,-5,11,-21,...
-64
-43
-43
64
For which conditional statement is the contrapositive true?
1.If a polygon has 4 sides then it's a quadrilateral
2.If a polygon has 4 sides then it's not a quadrilateral
3.If a polygon doesn't have 4 sides then it's a quadrilateral
4.If a polygon's a quadrilateral then is doesn't have 4 sides

According to the Law of Detachment, whis is a logical from these 2 statements: IF the temp is 95 degrees outside, then Jo will run her AC. The temp is 98
1.The temp is above 95
2.Jo will not run her AC
3.The temp is not 95
4.Jo will not run her AC
What's the slope of a line that is || to the line whoes equation is y-10= - 4(x+1)
-10
-4
-1/4
1/4

2007-12-15 05:32:58 · 1 answers · asked by Anonymous

Estimate the following product or quotient
17 11/12 / divided by 6 1/10 would I find a common denominator then divide???

2007-12-15 05:29:50 · 6 answers · asked by Flyyasever 3

5a + 2(3a + 4) - 2a

2007-12-15 05:24:09 · 12 answers · asked by bumble 3

2007-12-15 05:09:46 · 3 answers · asked by Anonymous

Given x over 4=y over 8, find x over y.

how do you do this?

thanks :]

2007-12-15 05:05:40 · 6 answers · asked by luckyplaya23 2

exm: tables, graphs and equations

2007-12-15 05:03:52 · 1 answers · asked by Anonymous

Let B be a Baire space, M a metric space and D a subset of B which is meager and dense in B. Show there's no f:B --> M that is continuous precisely at the elements of D.

Based on this fact, conclude there's no f:R^m --> R^n continuous precisely at the elements of.Q^m.

thank you.

2007-12-15 05:02:14 · 3 answers · asked by Anonymous

I can't remember how to figure that out on a calculator.

2007-12-15 05:00:06 · 7 answers · asked by happy b 1

show the function y = x^2 / (x+1)(x-2)

never has any values between 0 and 8/9.

I can show that when y = 0 the function has the root of x = 0 twice. Implying a local maximum or minimum. Then by taking x = 0.1 and -0.1 I can show it is a maximum.

Then taking y = 8/9 the root is x = -4 twice. Then by taking
x = -4.1 & -3.9, this is a minimum. Does this prove the above question, do I need more, or do I need to do it in a completely different method?

Does the fact that the function is quadratic mean that the fuction will only hit these points twice (even though the twice in this case is at the same x-value) even if the domain is all the real numbers?

If so this means that the function can never pass into these points again. Right?

2007-12-15 04:50:53 · 2 answers · asked by eazylee369 4

2007-12-15 04:43:04 · 10 answers · asked by vi3t10nisgirl 4

Robin ran 5 1/3 on Sunday and 2 1/4 on Tuesday. She then ran 3 1/2 on Friday. How far did she run during the week? I am confused where to start first.....

2007-12-15 04:42:08 · 14 answers · asked by Flyyasever 3

2007-12-15 04:40:16 · 6 answers · asked by Anonymous

This only happens when I have r^2= something. For instance: r^2=cos(2theta)

2007-12-15 04:34:53 · 2 answers · asked by autumnrose927 1

2007-12-15 04:30:27 · 2 answers · asked by RR T 1

2007-12-15 04:28:19 · 6 answers · asked by dana g 2

2007-12-15 04:27:02 · 12 answers · asked by ally 1

Find the value of x that satisfies the equation

25^-2 = (5^48/x) / ((5^26/x)(25^17/x))

2007-12-15 04:19:27 · 6 answers · asked by ~USA~ 2

2007-12-15 04:17:15 · 8 answers · asked by angeleyes 1

alright so it starts off as

n/3-5=n/4+2n
then i got this by multiplying everything by 12
4n-60=3n+24

now i have absoloutly no idea what to do after this.
my algebra teacher isnt very good at explaining this, and we have finals coming up

so could you work the problem out for me step by step?
thanks so much.

2007-12-15 04:00:41 · 7 answers · asked by Anonymous

i know how to find derivative of a point easy. im thrown by not being given any function im just shown a graph, so do i figure out what the function of the graph is? im looking through my book and having trouble finding how to do it. do i take multiple points and find the derivative at each one then graph it? im soo lost please help.

thanks

2007-12-15 03:54:02 · 3 answers · asked by Curious 2

Can somebody help me on factorising i know how to expand brackets but i find factorising harder.

36X(I dont know how to get the Algebra x) -30y-42 z
and 2cd-3de+4d

Thank You so much and have nice day :)

2007-12-15 03:43:19 · 3 answers · asked by Anonymous

8/9 6/8 5/7 100/200 52/3 2/3

2007-12-15 03:37:37 · 4 answers · asked by rachel 1

such as 83 times 5=415 83 would be called the __

2007-12-15 03:31:34 · 4 answers · asked by Anonymous

1.4-10=9-15; If , 6 1/4 is added both sides, it will be as :-
4-10+6 1/4= 9-15 +6 1/4 clear equality
2.So 4-10+ 25/4 =9-15 +25/4 still the same These look like
axa - 2ab +bxb similarly rt one cxc-2cd +dxd, make it.
2x2 -2x2x5/2+5/2x5/2 and rt one 3x3 -2x3x5/2 +5/2x5/2
3. final:_
(2-5/2)x(2-5/2) = (3-5/2)x(3-5/2)
( a-b) whole square and (c-d) whole square
4.Now work least and give answer clarify one clearing idea
with litle conformation and prove

2007-12-15 03:31:27 · 3 answers · asked by Anonymous

2007-12-15 03:25:18 · 25 answers · asked by miley 2