Mathematics - 29 September 2006

1. Determine whether this quadratic function has a maximum value or a minimum value, and then find the value:f(x) = 2x2+8x+ 5

2. Solve this inequality:(x-5)(x+2) > 0

3. True/false....The minimum value of f(x) = -x2 + 4x + 5 is f(2)

2006-09-29 16:12:35 · 7 answers · asked by KISMET 2

what word can you make with a calculator.

2006-09-29 15:46:42 · 6 answers · asked by ericthegreat92 2

Form a polynomial whose zeros and degree are given where a =1

The zeros are -4, 0, 2 and the degree is 3

2006-09-29 15:46:13 · 4 answers · asked by KISMET 2

2006-09-29 15:43:16 · 2 answers · asked by shanice s 1

2006-09-29 15:08:57 · 9 answers · asked by riazibm 1

For this problem, assume the box contains 6 white balls, 8 red balls, and 5 blue balls, and that we choose two balls at random from the box.
What is the probability of neither being white given that neither is red?

2006-09-29 15:05:02 · 13 answers · asked by Diggler AKA The Cab Driver 1

Does anyone know of any good software that I can use?

2006-09-29 14:15:37 · 7 answers · asked by tjcsonofallnations 3

Just one of the overly asked questions

2006-09-29 13:53:37 · 22 answers · asked by ZeroGravitashun 2

2006-09-29 13:47:03 · 4 answers · asked by lynod 1

2006-09-29 13:46:26 · 2 answers · asked by vnavinv 1

2006-09-29 13:20:28 · 4 answers · asked by Anonymous

I would like to know how much would 6,000,000 pennies weigh and how much space would it take up? If they were all rolled in the standard roll of 50 pennies per roll.

2006-09-29 13:04:26 · 11 answers · asked by ricewriter 2

here is the problem

2= log x

Againg how do you use a graphing calculator to solve this problem using log

2006-09-29 13:01:24 · 2 answers · asked by Jamie B 1

I know you have to use logs so I get (4x-4)log2 =(6-4x)log5 but then I get stuck. I don't know how to get the x's together. Can someone solve this step by step thanks.

2006-09-29 12:59:22 · 9 answers · asked by Anonymous

sqrt(e^5), sqrt(e^-5) ???

2006-09-29 12:44:59 · 11 answers · asked by Anonymous

I collapsed the natural log into one and then exponentiated to get e^8 = x/x-4 and then I cross-muliplied and solved for x to get 4e^8/1-e^8. For some reason that's not right. Anyone know the correct answer and how to get there? Thanks a ton.

2006-09-29 12:34:36 · 5 answers · asked by James A 2

Son at senior school (3 weeks) I didnt understand algebra when i was at school let alone learn it now.

2006-09-29 12:23:02 · 12 answers · asked by Anonymous

How do you factor out equations in the ax2+bx+c form that have fractions? For example, how do you factor x2 - 5/2x + 25/16 ??

That x2 is suppose to mean x squared. Whoever gives the best step by step outline gets 10 points :)

2006-09-29 12:20:05 · 9 answers · asked by Anonymous

ok so one and one third divded by 2 over 6

i know how to just divide fractions but how do you divide whole numbers and fractions together like example above.

2006-09-29 12:00:42 · 10 answers · asked by Anonymous

difficult q?
how many ways are there to choose a, b, c....g from {2, 3, 4, 5, 6, 7, 8} such that 1bdf Please don't brute force this, because that's not a good solution.

2006-09-29 12:00:23 · 4 answers · asked by need help! 3

Solve for exact solution

4pie + 4 tan-1 y = pie

If you can show me how you are doing it i would be appreciative.

2006-09-29 11:59:24 · 2 answers · asked by Woody Woodpecker 2

How many combonations of numbers are there in for a telephone number (not including the area code?)

2006-09-29 11:56:46 · 8 answers · asked by Wei H 2

The best answer gets the points!

2006-09-29 11:51:01 · 4 answers · asked by Anonymous

right now i'm in geometry and that is two maths levels ahead of my grade, i think that it is really really easy and i'm not sure if i should go to algebra 2 or just stay in geometry right now i have a 106.49% in the class, and i hate the teacher because she has no idea what she's teaching, she doesn't even understand paragraph proofs so we have to write two-column proofs or else she'll count them as wrong because she doesn't understand them... what should i do should i go to algebra 2 or stay in geometry i'm not even in high school yet what should i do???

2006-09-29 11:35:06 · 5 answers · asked by trumpets_rock88005 2

Please answer! it would really help

2006-09-29 11:12:45 · 16 answers · asked by jellybean 3

A farmer can plow a certain field three times as fast as his son. Working together, it will take them 6 hours to plow the field. How long will it take each to do it alone. (will you tell me how to solve it step by step.. so that i will learn... pls..)

2006-09-29 10:57:00 · 6 answers · asked by Anonymous

Suppose you have 12/20. Can you say that you "simplify by 4" and obtain 3/5?
Now we can see the reverse operation. Suppose you have 3/5. Can you say that "you amplify by 4" and obtain 12/20?

2006-09-29 10:39:17 · 5 answers · asked by Theta40 7

From what I understand, the derivative formula is: nx^(n-1)
Example,
f(x) = 4x^2
f'(x) = 4x^2
= 4 * 2 * x^(2-1)
= 8x

1) y = a * e^v + (b/v) + (c/(v^2)), find y'.
Here's what I've got so far:

y' = 1 * ve^(v-1) + (1/1) + (1/(2v))
= ve^(v-1) + 1 + (1/2)v

Where do I go from here (assuming that is right)?

2) z = A/(y^10) + B * e^y, find z'.
Again:

z' = 1/(10y^9) + 1 * ye^(y-1)

When you have a variable to the power of 1, that means it can be canceled, right? f(x) = B, f'(x) = 1*B^(1-1) = 1?

2006-09-29 10:38:35 · 7 answers · asked by Derek 4

equation:

f(x) = (3x+4) / (2x-3)
D(-oo, 1.5)U(1.5, oo)
R(-oo, 1)U(1,oo)

f^-1(x) = (-3x-4) / (3-2x)
D(-oo, 1)U(1,oo)
R(-oo, 1.5)U(1.5, oo)

Is this correct? Thanks for your help.

2006-09-29 10:28:12 · 6 answers · asked by shih rips 6

I try really har,take notes,listen,do homework,what else can i do

2006-09-29 10:24:27 · 11 answers · asked by Anonymous