Mathematics - 10 July 2007

the 17 is suposed to look like a small 17(underscored)

2007-07-10 16:48:31 · 4 answers · asked by lilrascal 1

how would you go about solving this type of problem? can someone solve and explain so i have some reference to look onto while i solve problems similar to this one.thanks.

2007-07-10 16:47:10 · 4 answers · asked by Anonymous

Evaluate the limit


4) lim square root of x-2 over square root of x^2 - 4x -4
X-->2
5) lim sq root of 1- 8x^3 over sq rt 1-4x^2
X--->1/2
6) lim sq rt of x -sq rt of 2 over x^2 - 2x
x--->2
7) lim 2 - cube root of x over (sq rt of x - 4) - 2
x---->8
8) lim x^2/3 -(2sq rt of x) over 4 - (16/x)
x--->8

2007-07-10 16:32:50 · 4 answers · asked by jan 2

Solve: 3 + 2(x + 10) = 17.


a. x = 2

b. x = -3

c. x = 3

d. No solution

2007-07-10 16:32:32 · 10 answers · asked by Anonymous

The sum of three consecutive odd integers is 72. Write the equation you would use to find a solution.

a. x + (x + 1) + (x + 2) = 72

b. x + (x + 1) + (x + 3) = 72

c. x + (x + 2) + ( x + 4) = 72

d. 2x + 6 = 72

2007-07-10 16:10:18 · 10 answers · asked by Gloria T 1

5x^3-20x^2 -60x

x^2 +7x - 4x -28

2007-07-10 15:58:45 · 5 answers · asked by Anonymous

Do you always have to follow the order of operations when solving and equation or simplifying an expression?

Yes

No

2007-07-10 15:53:33 · 7 answers · asked by soccergrl8128 1

I had an interesting dream. I am not an expert in math and barely passed calculus. I want to find out the reasoning of why this is always true. So please Math wizards or experts help me solve this logic.

My dream was revolved around the number 6 and # 9. For some reason I could figure out that any number in any sequences (except starting with 0) would always come up with a whole number. Example: Divide this number by 9 in any sequence you like and you will always get a whole number, but you have to use all of these numbers.

2,418,475,428,529,624,793,358

I would like to know who can solve the answer to this and the reasoning why this is always true. My dream told me the answer to this and thought it was amazing but its so simple and not even complex. Do people have crazy dreams like this?

2007-07-10 15:52:31 · 8 answers · asked by gq_foine 2

2007-07-10 15:42:37 · 3 answers · asked by lets.dancex3 1

1) If x is 66+(2/3) percent of y, then y is what percent of x?

2) When the positive integer n is divided by 9, the remainder is 7. What is the remainder when 5n is divided by 9?
a) 4 b) 5 c) 6 d) 7 e) 8

3) When an integer is multiplied by itself, it can end in all of the following EXCEPT
a) 1 b) 3 c) 5 d) 6 e) 9

4) If j,k,l, and m are four nonzero numbers, all of the following porportions are equivalent EXCEPT
a) j/k = l/m b) k/m = l/j c) m'l = k/j d) jm/kl = 1 e) l/j = m/k

5) If A is the set of digits and B is the set of even numbers, then the intersection of A and B contains how many elements?

Please EXPLAIN any of the questions you answer. Do not answer questions you are not sure the answer is correct.

2007-07-10 15:25:52 · 3 answers · asked by Anonymous

2 roads intersects at right angles, one going north-south, the other east-west. An observer stands on the road 60 meters south of the intersection and watches a cyclist traveling east at 10 meters per second. At what rate is the cyclist moving away from the observer 8 seconds after he passes thru the intersection? ( hint: 3-4-5 right angled triangle)

2007-07-10 15:24:00 · 4 answers · asked by ph103 1

http://i181.photobucket.com/albums/x85/ctti_3/untitled-21.jpg

2007-07-10 15:21:30 · 2 answers · asked by ph103 1

http://i181.photobucket.com/albums/x85/ctti_3/untitled-20.jpg

2007-07-10 15:08:14 · 1 answers · asked by ph103 1

a man drove at an average of 50 mph for a total of 12 hrs and 30 mins during a 2 day trip he drove 213 miles the first day. how mAny miles did he drive the second day?

help me please. :\

2007-07-10 15:08:11 · 6 answers · asked by Anonymous

2007-07-10 15:04:05 · 5 answers · asked by nicole_elise88 1

The length of a rectangle is 2 yd longer than its width. If the perimeter of the rectangle is 28 yd , find its area.

2007-07-10 14:59:42 · 6 answers · asked by Anonymous

I mainly just need to know how to express percentages as a ratio?

2007-07-10 14:52:26 · 10 answers · asked by Heather H 1

2007-07-10 14:52:25 · 4 answers · asked by josh.isaiah 2

a=1/x
b=9a
c=1/b
d=9c
e=1/d
x=
A) a
B) b
C) c
D) d
E) e


If b does not equal a, then (b/a-b) - (a/b-a) =
A) -1
B) 0
C) 1
D) (b-a)/(a-b)
E) (a+b)/(a-b)

If x^2 + y^2 =15 and xy= 5 , then x + y =
A) 5 only
B) -5 only
C) 5 or -5
D) 5 or 10
E) 10 or -10

17 minutes ago - 3 days left to answer. - 0 answers - Report

2007-07-10 14:52:18 · 2 answers · asked by Celia 4

2007-07-10 14:50:43 · 8 answers · asked by josh.isaiah 2

The general term of a series i tn=pi(3/11)^n+1. How many terms must be added to reach a sum that is greater than 0.32? The pi is the pi sign that equals 3.14....
This question is driving me nuts. the first term I get is larger than 0.32.

2007-07-10 14:47:08 · 1 answers · asked by unique1995 1

2007-07-10 14:44:30 · 8 answers · asked by We're in like sin! 3

We are going to give a new layer of coating to the path. If one gallon of coating can cover 6yd^2 , how many gallons of coating do we need? Note that coating comes only by the gallon, so the number of gallons must be a whole number. (Use the value 3.14 for Pi .)

2007-07-10 14:44:01 · 3 answers · asked by Anonymous

Sketch the graph of y=x^2 and y=x^4 for 0 <= x <= 1. how do you do that?

2007-07-10 14:42:50 · 3 answers · asked by Misbah 2

i need help finding a 6th grade math tutor and fast

2007-07-10 14:41:06 · 3 answers · asked by Anonymous

In the right-angled triangle the angle theta is increasing at a constant rate of 6 radians per hour. At what rate is the side of length x increasing when x= 3 ft?

the pic they have is
http://i181.photobucket.com/albums/x85/ctti_3/untitled-19.jpg

2007-07-10 14:39:41 · 2 answers · asked by tc 1

Find a possible formular for the ln(5(e)^(.3466x). Show your work.
Solve your formula for y.
Write your answer in the form y=ae^(kx) showing all steps.

For functions 2^x and 3^x, it seems that as delta x gets smaller, the average rate of change approaches a particular decimal. One of the decimals is greater than 1 and the other is less than 1. Using trial and error try to find an exponential function whose average rate of chance, using the intervals of 0.1,0.01,0.001, 0.0001, approaches 1. You should present at least 3 other exponential functions and their tables with the interval and average rate of change

-Not sure what the last question really means or how to do it.

Thanks

2007-07-10 14:34:42 · 1 answers · asked by Hunter 2

http://i181.photobucket.com/albums/x85/ctti_3/untitled-17.jpg

2007-07-10 14:34:28 · 3 answers · asked by tc 1

Help

2007-07-10 14:23:00 · 7 answers · asked by Anonymous

Of the total number of days in a week, what fraction of them occur only 52 times in a leap year?
Please explain.

Another math problem:
If x^2 + y^2 = 15, xy=5, then x+y=...
Show work

2007-07-10 14:05:53 · 5 answers · asked by cookie 2