Mathematics - 16 November 2007

multiply.

(x/3+3/4)(3x/4-3/5)

2007-11-16 11:22:35 · 7 answers · asked by Anonymous

2007-11-16 11:15:50 · 3 answers · asked by Anonymous

2007-11-16 11:14:42 · 2 answers · asked by Anonymous

For a test question, a mathematics teacher wants to find two constants a and b such that the test item "Simplify a(-9x + 2y) - b(7x - 4y) " will have an answer of (46x - 20y). What constants should the teacher use for a and b?

I have no idea where to start.

2007-11-16 11:04:42 · 5 answers · asked by thebodyelectric! 1

this problem is pretty hard !!

2007-11-16 11:03:01 · 3 answers · asked by Anonymous

show work.

2007-11-16 10:58:44 · 8 answers · asked by metsrule3029 1

SHOW WORK.

2007-11-16 10:56:18 · 30 answers · asked by metsrule3029 1

Hey everyone we are currently studying logarithms in grade 12 advanced functions and I am having a problem with this question:

4.6 * 1.06^(2x + 3) = 5 * 3^x [Ans: 0.09]

How would you solve for x? The answer is probably simple but I'm just not seeing it right now. Any help?

Thanks.

2007-11-16 10:54:44 · 8 answers · asked by s_j_sawyer 3

2007-11-16 10:36:48 · 16 answers · asked by Alexander 6

please help out! thank you!

2007-11-16 10:35:27 · 2 answers · asked by mercury 1

A){4} B){-6} C){ } D){4,-6}

2007-11-16 10:32:47 · 2 answers · asked by yanksrule4691 1

I don't know why this is giving me trouble.

A generator is a cup that has 6 cubes, 3 are red and 3 are black. The red ones count for 0 points and the black count for 1 point.

You draw from each cup one time and then replace the cubes.

So if you have 0 generators you can only get a sum of 0. If you have 1 generator you can get a sum from 0 to 1. For 2 generators you can get a sum from 0 to 2....and so on.

How many combinations can you have for 1 to 4 generators?


This is what I have but I want to make sure I have the correct amount.

1 generator: B, R
2 generators: BB, BR, RB, RR
3 generators: BBB, BBR, BRB, RBB, RRR, RRB, RBR, BRR
4 generators: I don't want to write them out, but I have 16 all together

Is that right???? Thank you so much!

2007-11-16 10:30:59 · 3 answers · asked by Anonymous

Point p lies outside circle O,which has a diameter of line AOC.The angle formed by tangent line PA and secant line PBC measures 30 degrees.Sketch the conditions given above and find the number of degrees in the measure of minor arc CB.[show all work.]

2007-11-16 10:25:53 · 2 answers · asked by yanksrule4691 1

in a science experiment,when resistor A and resister B are connected in a parallel circuit,the total resistance is 1 all over 1/A + 1/B.This complex fraction is equivalent to

2007-11-16 10:21:57 · 7 answers · asked by yanksrule4691 1

I have these two problems i cant solve and I'd like some help with them, I already posted the other one. If you could post the steps you take to get the answer it would help me alot in understanding the concept of this. They provide me with these answers.

1. y' = 12y / 6x^2 + 5y^2 - 5y
2. y' = 12x / 6x^2 + 5y^2 - 10y
3. y' = 10x / 6x^2 + 5y^2 - 10y
4. y' = 10y / 6x^2 - 5y^2 + 5y
5. y' = 10x / 6x^2 - 5y^2 + 10y
6. y' = 12x / 6x^2 - 5y^2 + 5y

2007-11-16 10:15:40 · 3 answers · asked by Damian 1

2007-11-16 10:07:49 · 4 answers · asked by Quagmire77 1

The asterisk is a multiplication sign. the ln4 is just there with no sign next to it, im having trouble understanding the concepts so I would like to see the steps one would take in order to solve this and maybe possible some brief reasoning would be nice as well. they give me the following possible answers. Thanks in advance for any help.

1. f'(x) = (5 * (4^x) - 8x^3) ln 4
2. f'(x) = 5x * (4^x-1) - 2x^3 ln 4
3. f'(x) = (5 * (4^x) - 2x^3) ln 4
4. f'(x) = 20 * (4^x-1) - 8x^3 ln 4
5. f'(x) = (5 * (4^x-1) - 8x^4) ln 4
6. f'(x) = 5 * (4^x-1) - 2x^3 ln 4

2007-11-16 10:01:20 · 4 answers · asked by Damian 1

At first day gas price was $1 per galllon.
At second day gas price was $2 per galllon.
At third day gas price was $3 per galllon, and continued to gain one more dollar every day.

Will the odometer ever show 1000 miles?

2007-11-16 10:00:19 · 16 answers · asked by Alexander 6

I need help when "changing a fraction, decimal, or a percent to the other to options. I.E

95%= .95= 95/100

Now how to I change the decimal 0.80 to a fraction and percent?
3/9 to a decimal and percent
6/8 to a decimal and percent
66 2/3% to a fraction and decimal?
Just give me the answer pleaseeeeeeeeeee!!!!!!!!!!!

2007-11-16 09:32:45 · 10 answers · asked by Anonymous

(a) 1s22s22p63s1

(b) 1s22s22p63s23p63d104s24p6

(c) 1s22s22p63s23p64s1

2007-11-16 09:23:08 · 1 answers · asked by Anonymous

Take the integral from [0 to pie] of 1/2(cos x + | cos x | ) dx =

and yes those are absolute value indications around the 2nd cos x.
0 = lower bound pie = upper bound

2007-11-16 09:21:42 · 2 answers · asked by USA*ELite* 2

Can anyone explain how this is done?
Thanks.

2007-11-16 09:20:06 · 2 answers · asked by jess r 1

A student makes random guesses for 10 true/false questions. What is the probability of getting one correct answer?

I can't seem to get the logic figured out on this one. Can someone set me in the right direction?

Thanks

2007-11-16 09:17:37 · 21 answers · asked by Bill 1

It takes a plane 40 min longer to fly from Boston to Los Angeles at 525 mi/h than it does to return at 600 mi/h. How far apart are the cities?

a 2,500 miles

b 2,650 miles

c 2,800 miles

d 3,200 miles

2007-11-16 09:05:30 · 5 answers · asked by Anonymous

x^2+y^2=2
x+y=1
solve this by using substitution
because i am stuck with this

2007-11-16 09:01:54 · 5 answers · asked by star baller 360 5

If the base of triangle ABC is 13 inches and the height is ib inches, what is the area in square inches of triangle ADF.


How would you go about working this problem out ?


Like the one posted here http://mathforum.org/pow/solutio75.html

ADF being the triangle on the far right.....ABC being the whole triangle.

2007-11-16 08:53:31 · 1 answers · asked by yo mamma 3

This is an internet homework, and the answer does have +c in it. I have no idea how to do this since its asking for indefinite, but then it gives me from 0 to pi/4.... any ideas?

2007-11-16 08:52:31 · 4 answers · asked by Zach B 1

Here is the question:

A light is on the ground 20m form a building. A man 2m tall walks directly towards the building at 3m/s. How fast is the length of his shadow on the building changing when he is 8m from the building?

I got ds/dt=20m/s but I am kind of doubting myself since I'm incredibly bad in related rates. Can someone check this over and i'f wrong can please just show me why I'm wrong. Thanks

2007-11-16 08:45:40 · 1 answers · asked by Anonymous

Using Integration, Calculate the Rotational Inertia of a uniform hoop of mass M and radius R about any daimeter
Hint: equation; I = (1/2)MR^2

2007-11-16 08:30:40 · 4 answers · asked by Wonder 2

Using Integration, Calculate the Rotational Inertia of a Solid cylinder (or disk) of mass M, radius R, and length L about central axis
Hint: Equation: I=(1/2)MR^2

2007-11-16 08:27:22 · 1 answers · asked by tosinjesu 1