Mathematics - 27 June 2007

2007-06-27 22:39:52 · 10 answers · asked by BLAZER...! 1

Just wondering if someone could show me the working out for this question?

Thanks

2007-06-27 22:21:54 · 6 answers · asked by Anonymous

options are:
a) 25
b) 24
c) 16
d) 20

2007-06-27 22:04:23 · 3 answers · asked by BLAZER...! 1

theoritically 2.54cm = 1 inch ..12 inches=30.48 cm
if we divide 175 by 12 and then 2.54 we get 5.7414 feet
and if we multiply 5.74 with 30.48 we get 174.9552
but on the contrary 175 cms is taken as 5.9" !! which one is correct ??...also do we use different measuring devices/units to measure human height ? KINDLY HELP asap !

2007-06-27 21:56:43 · 13 answers · asked by Raj 1

option is (a)1/2 (b) 1/180 (c) 180/2 (d) 2/180

2007-06-27 21:51:55 · 4 answers · asked by qaffanh2002 1

Solve for x using quadratic formula
2x^2+3x-2=0
Please list the steps. Thank you.

2007-06-27 20:40:33 · 9 answers · asked by Anonymous

You see, there are a few questions like this and now I try to mathematically solve the riddle...but do you agree with my resulting conclusion?

Empty means there is nothing there...we all know that half of nothing is nothing. A full glass is one glass full...half of one full glass is half So, surely half empty is incorrect (as half of nothing is nothing) and the glass is truly half full (half of a full (one) glass or half of a full...or half full).

2007-06-27 20:09:50 · 21 answers · asked by PollyPocket 4

I have no clue. D=

2007-06-27 19:27:30 · 4 answers · asked by Giggles 1

If p is the number of prime numbers between 65 and 75, then p =?

2007-06-27 19:04:10 · 14 answers · asked by Dynasty_Warrior 1

ln(x-1) - ln(x) =ln(3)

2007-06-27 18:57:30 · 10 answers · asked by Anonymous

John is walking east at a speed of 3 miles per hour, while Bob is also walking east, but at a speed of 5 miles per hour. If Bob is now 1 mile west of John, how many minutes will it take for Bob to catch up to John?

2007-06-27 18:39:07 · 7 answers · asked by wmy117 1

find the complex solutions of the following quadratic equations. write the solutions in standard form.

z^2 - 4z + 5 = 0

and
(4)b^2 = 2b - 1

2007-06-27 18:30:11 · 2 answers · asked by Anonymous

The Food, Education expenditure distribution of a family is 37% and 4.9% respectively. Approximately expenditure on education is how much percent less than the expenditure on food?
Option: (1) 87%, (2) 47%, (3) 32.1%, (4) 49%

2007-06-27 18:24:08 · 5 answers · asked by mousumi b 1

using the disk method to find the volume of the solid bounded by x=y^2 and the line x=4 rotated about the x axis, what is the area of the largest cross section?

2007-06-27 18:24:06 · 3 answers · asked by Kristina D 1

2007-06-27 18:22:20 · 4 answers · asked by Kristina D 1

3/7,-6/7,1/7,-1/2,2/7

2007-06-27 17:32:13 · 5 answers · asked by Sabrina W 1

Lori and Jon work in the toy department of the J-Mart discount store. Lori can assemble a bike in x minutes and Jon can assemble a bike in x-16 minutes. Write an algebraic expression for the number of bikes they can assemble if they work together for a ten hour shift.

2007-06-27 17:19:09 · 4 answers · asked by J's mom 2

In a group of 500 people, 300 can speak hindi only and 120 can speak english only.How many can speak both hindi and english?
Option: (1) 80, (2) 60, (3) 90, (4) 420

2007-06-27 17:12:45 · 11 answers · asked by Anonymous

2007-06-27 17:11:14 · 7 answers · asked by satin0722 1

2007-06-27 17:05:51 · 5 answers · asked by satin0722 1

2007-06-27 17:01:14 · 2 answers · asked by Kimmy D. 1

What does that in term of R, r, a mean? I am confusing. tell me the detail of it, please
In each of the figures named in the next few problems the object is to express its area (i) in terms of the radius R, that is, the radius of the circumscribed circle, (ii) in terms of the apothem r, that is, the radius of the inscribed circle, and (iii) in terms of the side a.

251. Equilateral triangle. [See problem 67 above.]
252. Square.
253. Regular pentagon.
254. Regular hexagon.
255. Regular octagon.

The area of a regular n-gon is A = nra/2. To find A in terms of R, r, or a, use the relationships

cos 180°/n = r/R, and
tan 180°/n = a/(2r).

Then

(i) in terms of R, the area A = nR^2 cos 180°/n sin 180°/n,
(ii) in terms of r, the area A = nr^2 tan 180°/n, and
(iii) in terms of a, the area A = na^2/(4tan 180°/n).

2007-06-27 16:46:49 · 1 answers · asked by liangjizong22 1

Write the algebraic expression which represents the time it takes to go 500 miles at x+2 miles per hour.

2007-06-27 16:43:04 · 4 answers · asked by J's mom 2

2007-06-27 16:36:26 · 7 answers · asked by bara hachi 2

I am making sure that my answers are correct but I am not sure with my answers: T_T Help

1.a messenger travel from A to B if he will leave A at 8am and travel 2kph he will arrive at B 3 minutes earlier than his expected time of arrival however if he will leave at 8:30 am and travel at 3 kph he will arrive 6 minutes late than the expected time of arrival what is the expected minutes time of arrival?

2. 2 airplane traveling in opposite direction, leave an airport at the same time if one plane quarages 480 mph & the other average 520 mph, how long will it take before they are 200 mi apart?

3. admission tickets to a motion picture theater were priced at $100 for adult and $75 for students, if 810 tickets were sold and the total receipt were $ 71,325.08 how many types of tickets were sold?

Please help me :( I wanna make sure I don't have any error both on solution and answer. Thanks a Lot :)

2007-06-27 15:52:46 · 3 answers · asked by Chris 2

2007-06-27 15:33:04 · 2 answers · asked by AJ C DM 1

which of the following statements is true of the number of pairs of positive integers (x,y) satisfying the eqn x^2-y^2=702 ?

(1)There is only one pair possible

(2)The number of pairs is more than one but finite

(3)There are infinite number of pairs

(4)No such pair is possible

2007-06-27 15:25:13 · 6 answers · asked by calculus 1

20. (_1, 3) and (4, _2)

24. (2, _3) and (2, 4)

2007-06-27 15:20:27 · 5 answers · asked by Anonymous

( 2 / (x^2-2x)) - (1/ (x-2))

2007-06-27 15:18:33 · 2 answers · asked by tc 1

what is the answer to

2^i

2007-06-27 15:10:00 · 5 answers · asked by Anonymous