Mathematics - 1 September 2007

2007-09-01 12:58:51 · 3 answers · asked by sal 1

math problem

2007-09-01 12:55:26 · 10 answers · asked by Knowledge 1

The following is a problem in my summer calculus packet...

There is a triangle symbol in the problem, and I don't know what that means. Since I don't have a triangle key on my keyboard, pretend that the "@" symbol is a triangle.

So, here is the problem:
Find f(x + @x) for f(x)=x^2 - 2x - 3

2007-09-01 12:55:14 · 4 answers · asked by oriolesfan2323 4

Solve x (x + 5) (x 􀀀 4) < 0 for x.

Please show/tell how this was done, I must understand it!

Thanx a bunch!

2007-09-01 12:42:22 · 2 answers · asked by Anonymous

For what value of k does the system of equations,
2x + y = 1; 12x + ky = 12 have no solution?

Please show work, explain, do whatever so that I can see how it is done.

Thanx a bunch!

2007-09-01 12:40:36 · 3 answers · asked by Anonymous

I'm in 8th grade, and I just started algebra 1.
I absolutely love it, but my teacher never explained inputs and outputs, and i have 3 questions on it.
I just guessed and tried to figure it out, so is this right?
'The output of a function is 5 more than 2 times the input. Find the input when the output is 17.'
I think the answer is 6 because in order for an equation to equal 17 the equation would have to be 6(2) + 5
Am I right or wrong?

2007-09-01 12:35:41 · 3 answers · asked by Steph 4

2007-09-01 12:30:24 · 8 answers · asked by Elizabeth G 1

If f(x) = 2x^2 - x +2 what is f(a+h) = ????

2007-09-01 12:29:38 · 6 answers · asked by Rrrr0001 1

2007-09-01 12:21:55 · 4 answers · asked by jdbrown919 1

2x^2 - 4x +1 = 0
could you show how this problem is done also

2007-09-01 12:17:09 · 4 answers · asked by Anonymous

which are identical?

1. a) cos^2 x b) (cosx)^2 c)cos x^2

2. a) (sinx)^-1 b) arcsinx c) sin x^-1 d) 1/(sinx)




thanks in advance for the help!!

2007-09-01 12:11:42 · 3 answers · asked by Anonymous

if a is 50% larger than c, and b is 25% larger than c, then a is what percent larger than b?

explain!?!?!?! i really need help

2007-09-01 12:10:56 · 10 answers · asked by Anonymous

3 square root of 2 and 2 square root of 3|

2007-09-01 12:02:37 · 10 answers · asked by avenger 2

Multiply and simplify. Assume no denominator has a 0 value.



x^2 - 2x - 3/ x^2- 3x X x^2/x^2 - 1

2007-09-01 12:00:37 · 4 answers · asked by Anonymous

2007-09-01 12:00:11 · 4 answers · asked by avenger 2

1. x^2+6x+9/ 30 divided by x+3/10


2. 2x^2+7x-15/x+5 divided by 9x^2-4/3x+2

2007-09-01 11:58:03 · 3 answers · asked by Anonymous

factor this 2x^2-x-3 and this 5x^2+34x-7
both are 2 different questions

2007-09-01 11:57:05 · 5 answers · asked by mercedes'08 1

Divide and simplify. Assume no denominator has a 0 value.

x^2-5x+6/x+5 divided by x+1/x+5

2007-09-01 11:53:13 · 5 answers · asked by Anonymous

One day, the temperature at 2:00 A.M. was 43°F, and by 3:00 P.M. the temperature was 56°F. What was the hourly rate of temperature change? I got 2f/h, but I do not feel this is correct....anyone confirm? Show me what I am doing wrong?


And this one i sBUGGING ME as well!
Find two consecutive integers such that the sum of 2 times the first integer and 7 times second integer is 88.

2007-09-01 11:51:59 · 7 answers · asked by ? 1

1. Factor completely: x^2 + 10x + 25
2. Factor completely: 2x^2 - x - 10
3. Factor completely: x^2 + 6x + 9

2007-09-01 11:50:31 · 5 answers · asked by Anonymous

2 + 6 + 18 + ... + 2 * 3 to n-1 power = 3 to n-1 power

use mathematical induction to prove the statement are true for every positive integer n.

2007-09-01 11:32:12 · 3 answers · asked by clavezza28 2

2007-09-01 11:04:07 · 6 answers · asked by Anonymous

2007-09-01 11:01:24 · 4 answers · asked by Anonymous

solve the following equation by using the quadratic formula.

y^2-6y+11=0

2007-09-01 10:45:48 · 3 answers · asked by What's up people!! 1

Factor: 6x^2 -17x +5

Simplify: (6m^4-2) -(2m^3-1) + (4m^4-6m^3)

Use Linear combinations to solve the linear system
3x+2y=-5
4x-3y=16

2007-09-01 10:42:51 · 3 answers · asked by Anonymous

3p - 1 = 5(p-1) - 2(7-2p)

2007-09-01 10:38:29 · 8 answers · asked by What's up people!! 1

2007-09-01 10:35:42 · 4 answers · asked by Anonymous

2007-09-01 10:32:45 · 5 answers · asked by Anonymous

2007-09-01 10:28:44 · 5 answers · asked by Anonymous

solve the following equation by using the quadratic formula.

s^2 - 4s - 2 =0

2007-09-01 10:14:59 · 8 answers · asked by What's up people!! 1