Mathematics - 27 June 2007

Solve the following compound inequality and express the answer in interval notation. 5x < 20 and -3x < 12 No spaces please!

2007-06-27 11:01:56 · 3 answers · asked by how's it going 1

28....... first seven values of the function. Then use the values to calculate the second differences of the function...

f(1)=0
f(n)=f(n-1)=(n-1)^2

2007-06-27 11:01:54 · 2 answers · asked by Anonymous

Okay, im stuck on something on my homework, i dont understand what its asking me..

"Which of the equations below is a formula for y in terms of other variables?

(a) b = y - mx (b) y = mx + b (c) x = y - b"

c is "x=y -b" over "m".. looks like a fraction. w/e.

I dont understand what it is asking me.. Simplify the question or something, use examples if you think it will help.

2007-06-27 10:49:31 · 11 answers · asked by Anonymous

Show how to use properties of logarithms to simplify each expression
log 8 – 2 log(base 3) 2 + log 5

2007-06-27 10:33:12 · 6 answers · asked by Mark 2

So I have 4 questions that I would really be glad if people helped me... im not trying to cheat or anything but ive been doing this 200 question packet over different things and I need help with these 4...
trying to find sums and differences...
(b+1/b+2) - (b+3/b+4)

(y/y^2-49) - (7/y+7)

(1/2) + (3/x+4)

(a+2/4b) - (a-1/10b) + (a-3/5b)

i know it's alot so I get if you dont answer... i just am really really confused.

2007-06-27 10:28:42 · 5 answers · asked by Anonymous

2007-06-27 10:25:34 · 5 answers · asked by Anonymous

could you show me the steps on how to figure these out?

19: A lawn-and-garden dealer wants to make a new blend of grass seed by using 200 pounds of $0.45 per pound seed and some $0.65 per pound seed. How much of the $0.65 seed does the dealer need to make a $0.55 per pound blend? 100 lbs
180 lbs
200 lbs
220 lbs

10: Peanuts sell for $3.00 per pound. Cashews sell for $6.00 per pound. How many pounds of cashews should be mixed with 12 pounds of peanuts to obtain a mixture that sells for $4.20 per pound?
5
6
7
8

11: 6kg of inferior quality tea are mixed with 3kg of high quality tea which costs $2.00 per kilogram more than the inferior tea. The total price of the mixture is $24.00. What is the price of the inferior tea?
$2 per kg.
$3 per kg.
$5 per kg.
$7 per kg.

The nut shop sells peanuts for $15 per kg and cashews for $10 per kg. How many kg of cashews would be in the mix in order to get 20 kg of a mixture worth $12 per kg?
4 kg
8 kg
10 kg
12 kg

2007-06-27 10:12:03 · 4 answers · asked by Skyler 2

geometry i think, anyone know?????/?

2007-06-27 10:00:05 · 11 answers · asked by barry o 3

the direction say to fidn the sums or differences....


x + 5 OVER 3
-
x - 3 OVER 2

is the answer

-x + 1 OVER 6?

if not what is it? Thanks.

2007-06-27 09:56:19 · 9 answers · asked by Anonymous

A right triangle has one vertex on the graph y= 9 - x^2, x>0 at (x y) another at the origin and the third on the positive x axis at (x 0). Express the area A of the triangle as a function of x.

I said it was A(x) = 1/2 (w *x)

am I right? Please help explain thanks!!

2007-06-27 09:55:34 · 6 answers · asked by Anonymous

X^3 + 3X < 4(X^2)
it's read --
Xcubed plus three X is less than four X squared.

how would you solve?

2007-06-27 09:26:11 · 8 answers · asked by Anonymous

8 radical 3 squared

2007-06-27 09:18:30 · 1 answers · asked by Anonymous

The directions say to find the indicated sums and differences with these LCD problems.

/ = over

1.
5/a
-
3/b
+
2/ab

2.
5n + 1 / 6
+
3n-2/8

3.
x + 5/3
-
x-3/2


Thank you anyone who can help.

2007-06-27 09:18:25 · 5 answers · asked by Anonymous

I can't figure out these 2 problems... thank you to anyone who can help.

/ = Over
^ = to the power of

Find the indicated sums and differences

1.
2k / 4k^2 - 9
+
3 / 4k^2 - 9


and


2.
x-y / x + y
-
y - x / x + y

2007-06-27 09:12:27 · 5 answers · asked by Anonymous

2007-06-27 09:07:22 · 6 answers · asked by Anonymous

if 15xsqaured= 16x+15, what would the answer be? give a step by step explanation on how to do these types of problems.

2007-06-27 09:06:31 · 3 answers · asked by Hot Rod O 1

If a manufacturer's list price is $800 and Bill's Outlet buys the goods for $650, what is the trade discount percent? (Round answer to nearest hundredth percent.)

2007-06-27 09:00:52 · 5 answers · asked by Chelsey m 2

Solve these 2 by graphing ( Just coordinates)
1. 2x-y=1
3x+y= -6

2. x+2y=4
y=2x-8

Solve these by substitution

3. y=5-4x
3x-2y=12

4. 5x-6y=16
5x+y=2

5. -3x+y= -4
y= x+8

Cant thank you enough!

2007-06-27 08:41:45 · 3 answers · asked by Anonymous

I need to know in a hurry completley forgot.... x_x

2007-06-27 08:30:11 · 14 answers · asked by Hannah C 1

What is x in the following equations?
1. 1/2log x – log x = log 2
2. [logbase2(x)]/[logbase2(8)]=2/3
3. lnx+ln(x+1)=ln2

I've tried so hard to figure these out. If anyone can help I would appreciate it so much.

2007-06-27 08:23:56 · 5 answers · asked by Anonymous

present it as an order pair :(x,y). if not, specifiy whether the answer is no solution or infinitely many soloutions.
-7x + y = 8
2x - y = 2

2007-06-27 08:23:39 · 4 answers · asked by peaches 1

pair: x,y. If not, specifiy whether the answer is no solution or infinitely many soloution -3x +y =1
5x + 2y = -4

2007-06-27 08:17:59 · 6 answers · asked by peaches 1

2007-06-27 08:12:10 · 4 answers · asked by Anonymous

2007-06-27 08:09:38 · 5 answers · asked by peaches 1

2007-06-27 08:06:59 · 6 answers · asked by peaches 1

2007-06-27 07:43:20 · 4 answers · asked by sapphirelille 1

Let me clarify, if I am taking a measurement and I am off by 5 mm, and that discrepency is compounded as it travels over distance, how large of a discrepency is there when it reaches 1 mile?

2007-06-27 07:42:44 · 7 answers · asked by tridak 3

2007-06-27 07:28:57 · 6 answers · asked by Anonymous

passing through the point I mean

2007-06-27 07:20:46 · 4 answers · asked by Anonymous

.........fine the first and second differences for the following values of f(n)

n 0 1 2 3 4 5
f(n) 3 2 3 6 11 18

thank you!

2007-06-27 07:19:34 · 1 answers · asked by lost 2