Mathematics - 17 July 2007

Find equations of the tangent lines to the curve below that are parallel to the line x - 2y = 2.

y = (x-1)/(x+1)

y = (smaller y-intercept)
y = (larger y-intercept)

2007-07-17 09:51:39 · 2 answers · asked by Anonymous

1.) Given f(x)=l3x-6l, find(0)-f(3)

2.) given g(x+deltax)-g(x) / delta x for g(x)=x^2=3x-1

3.)Which of the following equations expresses y as a function of x?

Choices
A.) 3y+2x-9=17
B.) 2x^2 (y)+x=4y
C.)Both a and b
D.) Neither and a b
E.) 3y^2 -x^2=5

2007-07-17 09:38:46 · 2 answers · asked by Anonymous

In Triangle A B C., angle C is (8x+4) degrees and segment AB = (6x+2)mm.
Part a. What value of x would make Triangle A B C.equilateral?
Part b. What is the perimeter or sum of the lengths of the sides of the equilateral triangle? Be sure to include the unit of measure in your solution.

2007-07-17 09:33:54 · 3 answers · asked by Triock91 1

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

54x2


6x3 + 120x

12(x2 + 5)(x + 4)
12x(x + 5)(x + 4)
6x(x + 20)(x + 9)
6x2(x + 5)(x + 4)

2007-07-17 09:31:47 · 2 answers · asked by Anonymous

2007-07-17 09:29:56 · 6 answers · asked by Anonymous

Line 1 is parallel to line 2. If the slope of L1 is x/4, and the slope of L2 is (x+5)/6, find the value of x.

Okay, now most people say this is how the problem is solved....but what in the world did they do with the 6? By the looks of it, they dived the 4 by 4 to get rid of the x...but how did the 6 become 2?????


x/4=(x+5)/6
6x=(4x+20)
2x=20
x=10

2007-07-17 09:29:47 · 5 answers · asked by ChellBaby 1

I've tried alooot of answers for this one, and am almost out of submits. Help please!

Find equations of both lines through the point (2,-3) that are tangent to the parabola y = x2 + x.
y = (smaller slope)
y = (larger slope)

2007-07-17 09:28:31 · 3 answers · asked by Anonymous

2007-07-17 09:27:34 · 12 answers · asked by Anonymous

2007-07-17 09:26:06 · 9 answers · asked by Anonymous

in the last month 15 cats 11dogs 2 rabbits and 12 birds were boarded at brocks pet hotel.wat is the relative frequency of birds among the animals boarded at the pet hotel in the last month?

wats relative frequency ??
how u slove this?
help plz!

2007-07-17 09:23:43 · 4 answers · asked by po123116 2

2007-07-17 09:22:32 · 3 answers · asked by thepaladin38 5

6)Plot the following points on the given rectangular coordinate system by clicking on the given dots and dragging them.

Points to plot:
(-3, 2 )
(-2, 1)
(1, -2)

f you were to connect these points with a line, where would the y-intercept be located? Give the answer in (x, y) form.

(___, ___)

2007-07-17 09:14:12 · 4 answers · asked by DEE H 1

Please help!

2007-07-17 09:11:11 · 2 answers · asked by Bigbob22 2

find all real values of x for which tha function are equal. Round your answers to the nearest hundredth?
please help me

2007-07-17 08:55:45 · 7 answers · asked by king 1

5x^2=5

&

(x-2)(x-3)=6

& explain please

2007-07-17 08:18:43 · 9 answers · asked by Anonymous

2007-07-17 08:15:56 · 6 answers · asked by Anonymous

I need to find the volume of the solid obtained by rotating the region given by the given curves about the y-axis bounded by

y=36x-6x^2 & y=0

so I have plotted the graph and found the points of intersection to be at 0 and 6

I found the expression of the indefinite integral:

-2x^3 +18x^2 + C

Then I found the parameters I will use to find the volume of my solid which I found by finding the maximum value of y=36x-6x^2 by taking the derivative and setting it to zero. This gave me a value of 3.

So I integrate the function from [0,3] but this only gives me the cross-sectional area.

How do I use the washer method to finish this question? or... did I approach it wrong?

2007-07-17 08:08:47 · 2 answers · asked by Anonymous

z=(square root sign over 2 -i )^4

2007-07-17 08:02:40 · 1 answers · asked by Anonymous

2007-07-17 07:55:09 · 10 answers · asked by Anonymous

Find a positive alue if the given variable so that the trinomial is factorable .
x^2 + bx + 13 ; b = ?


A ) 15

B ) 12

C ) 13

D ) 14

2007-07-17 07:50:58 · 5 answers · asked by Anonymous

2x+3=8

2007-07-17 07:44:54 · 5 answers · asked by DEE H 1

I've got to the bit where I have:
x+b/2a=the square root of b squared-4ac over 4a squared

I know that x+b/2a=the square root of b squared-4ac over 2a comes next but I don't know why.

Please can someone explain and I'm sorry I can't use maths symbols on the computer. If anyone could tell me how to do that too it would be helpful.

2007-07-17 07:40:54 · 6 answers · asked by becky 2

Hollis is paying off two student loans. One loan charges 7% interest per year. The other loan charges 9% interest per year. He owes $1500 more on the 7% loan than he does on the other. Last year he paid a total of $617 interest. How much does he owe on each loan?

Please help me make the two equations.

2007-07-17 07:36:56 · 8 answers · asked by Anonymous

in still water, a boat averages 7mph. it takes the same amount of time to travel 20 miles downstream with the current, as 8 miles up stream against the current, what is the rate?

how do i set this up to solve it?

2007-07-17 07:35:34 · 4 answers · asked by Anonymous

i can't seem to find the ones for these

3e^2x

3sin2x

2007-07-17 07:33:26 · 5 answers · asked by Anonymous

2007-07-17 07:28:27 · 9 answers · asked by Anonymous

Please help!

2007-07-17 07:26:35 · 4 answers · asked by Anonymous

Pls help!

2007-07-17 07:24:23 · 2 answers · asked by Anonymous

2007-07-17 07:20:08 · 6 answers · asked by Anonymous

y = 49x2 + 4x - pi , your grade would be the derivative, dy/dx,
evaluated for the independent variable x = 1. Good luck.

This is my test grade on my college algebra test after I requested my grade. My professor thinks he's funny.

2007-07-17 07:17:53 · 2 answers · asked by bleunumen 1