Mathematics - 7 September 2007

I seem to be hitting a wall with difference quotient problems. For this one I have f(x) = x - 1, find f(x+h)

f(x+h) = (x + h) - 1?
I'm not exactly sure if that's how the h should be applied or if f(x+h)= x+ h -1

2007-09-07 08:34:48 · 4 answers · asked by Rogers Hammers 1

show the steps

2007-09-07 08:32:20 · 3 answers · asked by stephanie n 1

2007-09-07 08:06:35 · 4 answers · asked by Anonymous

Can someone slove, teach and explain this equation??? ( Word problme)

The quotient of a number and 3 is the same as the difference of the number doubled and 5. What is the number?

2007-09-07 07:59:11 · 4 answers · asked by SaySay 2

I'm currently a sophomore major in EE in college.
I have learned calculus1-3 and I'm taking differential equation now.

I get the feeling that math may be the most useful and desirable major I know,I'm thinking about changing major.
But I'm not smart at all and dumb when it comes to math or science.

2007-09-07 07:48:49 · 17 answers · asked by Jason N 2

2007-09-07 07:48:45 · 3 answers · asked by daphne 1

3 over 2x +1 over 10 = 2 over x


i need to solve for x. i tried several times & i just couldnt understand it. thanks

2007-09-07 07:48:31 · 7 answers · asked by loope 1

...using the left, right, trapezoid and simpson's rules. use what you know about approximate error to answer the following questions.

suppose left(40)=2.3055 estimate left(160).
suppose trap(40)=2.7250 estimate trap(160)
suppose simp(40)=3.1680 estimate simp(160)


HELP!
i'm very much confused.
explain it step by step, please.
i am really trying to learn this stuff.

2007-09-07 07:47:02 · 2 answers · asked by Anonymous

2007-09-07 07:41:21 · 3 answers · asked by Anonymous

2007-09-07 07:39:30 · 6 answers · asked by Anonymous

a. 5! + 7!
b. 3^7 - 1
c. 2^7 - 1
d. 54321
e. 12357

can you please explain how you found the answer (without calculator?)

Thank you

2007-09-07 07:38:07 · 10 answers · asked by єуℓüℓ 4

2007-09-07 07:35:45 · 5 answers · asked by Anonymous

This isn't a homework question. The vet's papers said my dog weighed 47 killagrams. I'd like to know what that is in pounds. Thanks for your help.

2007-09-07 07:23:37 · 12 answers · asked by Tasha 4

If g(x) = x ^2 + 2x, x ≥ 0, find g ^-1(3).

a. g^ -1(3) = -3
b. g ^-1(3) = -1
c. g ^-1(3) = 1
d. g ^-1(3) = 3
e. g^ -1(3) = 5

2007-09-07 07:12:54 · 3 answers · asked by Anonymous

Express the quadratic function f(x) = - x ^2 + 4x - 12 in standard
form.

a. -(x - 2) ^2 - 8
b. -(x + 2)^2 - 14
c. (x + 2) ^2 + 12
d. -(x - 4) ^2 - 2
e. (x - 4) ^2 - 24

2007-09-07 07:11:10 · 5 answers · asked by Anonymous

Decide which of the following viewing rectangles produces the
most appropriate graph of the function
f(x) = (120 - x ^3 )(square root).

a. [-2,4] by [-2,4]
b. [-10,12] by [-12,20]
c. [-8,6] by [0,25]
d. [-120,100] by [-20,50]
e. [-60,300] by [-4,4]

2007-09-07 07:09:51 · 3 answers · asked by Anonymous

Find the domain of the function
h(x) = (6 - x)(square root) + (x^ 2 - 4)(square root) .

a. (-∞,6]
b. (-∞,-6] ∪ [0,6]
c. (-∞,0] ∪ [2,6]
d. (-∞,-2] ∪ [2,6]
e. [2,6]

2007-09-07 07:09:49 · 3 answers · asked by Anonymous

Show work please! I'M CONFUSED ....

2007-09-07 07:04:05 · 7 answers · asked by nealee 2

Canadian dollar $40
British pounds 18.7194

How much money is the british pounds?...I hate math.
$18.71 but its just a guess.

2007-09-07 07:01:08 · 4 answers · asked by vagg 2

2007-09-07 06:56:32 · 6 answers · asked by Anonymous

Find the domain and range of the function:
G(x) = (x^ 2 - 16)(square root)

a. Domain (-∞,-4] ∪ [4,∞), Range [4,∞)
b. Domain (-∞,-4] ∪ [4,∞), Range [-4,∞)
c. Domain (-∞,-4] ∪ [4,∞), Range [0,∞)
d. Domain (-∞,-2] ∪ [2,∞), Range [2,∞)
e. Domain (-∞,∞), Range [0,∞)

2007-09-07 06:53:49 · 4 answers · asked by Anonymous

Express the function (or rule) f(x) = x/6- 4 in words.

a. Subtract 4, then divide by 6
b. Subtract 6, then divide by 4
c. Divide by 6
d. Divide by 6, then subtract 4
e. Divide by 6, then add 4

2007-09-07 06:48:37 · 3 answers · asked by Anonymous

Let i = sqrt(-1) (that is, let i = (-1)^(1/2)
i = i^5
log (i) = log (i^5)
log (i) = 5*log (i)
1 = 5

Q.E.D

What's wrong with this?

2007-09-07 06:48:26 · 5 answers · asked by farful 4

1. Find the center and the radius of the circle, (x+4)squared +(y+1)squared=100.
2. Write an equation of the circle that has center(1,5) and is tangent to the y-axis.
3. Find the midpoint of the segment with endpoints (a-2,b) and (a+4,b)

2007-09-07 06:45:00 · 2 answers · asked by STAN 3

The specific equation I'm trying to solve is:
dv/dt = ae^(bt) - cv
where a, b and c are positive constants.
I know how to solve differential equations of the form
dv/dt = f(t)g(v)
but not
dv/dt = f(t) + g(v).

2007-09-07 06:42:35 · 3 answers · asked by Mark R 2

Solve the equation 1/2x ^2 - 11/2x + 15 = 0 by completing the square.

a. x = -1 ± 5 √6
b. x = 5 or 6
c. x = -5 or -6
d. x = 11/2or 12
e. x = 1/2 or -1

2007-09-07 06:32:18 · 7 answers · asked by Anonymous

Explanation: 27a to the 4th exponent minus a.

2007-09-07 06:29:38 · 10 answers · asked by nealee 2

X= 10(cosx+xsinx)
Y= 10(sinx-xcosx)
What is the length of the curve from 0 to (3pi/2)

2007-09-07 06:26:59 · 2 answers · asked by tchoxi2000 1

Evaluate the expression (3i)^4 and write the results in the form a+ bi.

a. -81
b. -16
c. 4
d. 16
e. 81

2007-09-07 06:26:22 · 4 answers · asked by Anonymous

i am thinking the answer of the book is wrong, but could someone check the answer, thanks so much !!!

2007-09-07 06:10:42 · 4 answers · asked by thankyouforhelp 1