Mathematics - 7 December 2007

I'm horrible at word problems. Please help me by explaining this: What is the formula, How can we plug it in (what goes where) and breaking it down for this problem and coming up with an answer: If Shua is on top of a 10ft? roof top, and she drops her tremendous brain on the floor- The time it took to hit the floor was ? 6 seconds. That's pretty basic, but even I don't know if these math #s are actually right because I'm just throwing out random #s. If you have a real velocity problem, please SHARE how you solved it!

2007-12-07 06:09:40 · 8 answers · asked by Anonymous

1. (x/y)^5 ( 2/x)^4 (y/4)^3

2.(5^3 + 3^5)^0 / 2^-1

2007-12-07 06:04:39 · 3 answers · asked by Anonymous

2007-12-07 06:00:08 · 5 answers · asked by Timothy M 1

Δƒ/Δx and Δƒ/Δy. ƒ(x,y) = xy² + x²y

2007-12-07 05:57:52 · 7 answers · asked by samera j 1

the side (a) of a triangle ABC is calculated from the following formula
a/(sinA) = b/(sinB)
where lower-case letters refer to the sides and upper-case letters refer to the angles opposite those sides
The side b in error by 3.1%.
Aand B are given as 52 degrees and 51 degrees respectively, to the nearest degree.
Using partial differentiation find the greatest percentage error in the calculated value of a.

2007-12-07 05:55:51 · 1 answers · asked by ozi 1

Consider the following procedure that purportedly finds the greatest common divisor of x and y, x>y.

FindGCD(x,y)
--If y|x return y
--Else return FindGCD(x, x mod y)

Is this procedure correct? if so, is it significantly faster or slower than Euclid's algorithm? Of not correct, why not?

2007-12-07 05:54:04 · 1 answers · asked by ? 3

Find a nonzero element in a ring that is neither a zero-divisor nor a unit.

2007-12-07 05:50:37 · 2 answers · asked by Anonymous

A 6-ft. board is cut into 2 pieces so that one piece is 2 feet longer than 3 times the shorter piece. If the shorter piece is x feet long, find the lengths of both pieces.

A shorter piece: 3 ft; longer piece: 18 ft
B shorter piece: 6 ft; longer piece: 20 ft
C shorter piece: 16 ft; longer piece: 18 ft
D shorter piece: 1 ft; longer piece: 5 ft

2007-12-07 05:49:19 · 7 answers · asked by Anonymous

Which is equal to 0x5?

0-1 or 2/0 or 0+3 or 0/4 ?

Explain your answer in details.

2007-12-07 05:49:02 · 6 answers · asked by Kitana100 1

i am really confused. how do i use substitution?

2007-12-07 05:45:47 · 3 answers · asked by ellellelle 2

-5 [ (-2) (-3) + 9 ] =
Explain in details your answer.

2007-12-07 05:45:39 · 4 answers · asked by Kitana100 1

Expressed as a decimal, 2 % is???

Explain your answer in details.

2007-12-07 05:44:05 · 4 answers · asked by Kitana100 1

2007-12-07 05:44:00 · 1 answers · asked by Mzee 3

The perimeter of a retanguler is 24. If the width is 4, what is the area?? Explain your answer in details??

2007-12-07 05:43:02 · 7 answers · asked by Kitana100 1

Show all steps please.

2007-12-07 05:39:26 · 12 answers · asked by Anonymous

20 y is a s

100 dc is the bp of w

5 or 9 D is a ZC

2007-12-07 05:34:39 · 2 answers · asked by SteveO 2

1. the diameter of a circle is 14cm. find the circumferance and the area of the circle. round your 2 decimal places places

circumferance -
area-

2. A given trapaziod has two parallel sides, its bases, with lengths 11.3 inch. and 7.5 inchs
the heighs of the trapazoid is 4 inchs

Find the area of the trapazoid

Area = ____ inchs squared

2007-12-07 05:33:21 · 5 answers · asked by Anonymous

tan^2(2A-pie/12) = 3 domain: 0 (greater than or equal to) A (greater than or equal to) 2pie

2007-12-07 05:28:48 · 1 answers · asked by Anonymous

It goes like this:
1/2 //// (x^2-2x-3)=0
x^2-2x-3=0
(x-3)(x+1)=0
x = 3, x = -1
(3,0) (-1,0)

Where did 1/2 in front of the square root go?

2007-12-07 05:25:15 · 4 answers · asked by Mzee 3

2007-12-07 05:24:54 · 1 answers · asked by Mariem H 1

solve
tanA + sec2A = 1
domain: -pieby2 (less than or equal to) A (less than or equal to) pieby2

2007-12-07 05:24:20 · 1 answers · asked by Anonymous

This question is difficult

How do i turn y+3=2/5(x-1) into 7=2/5x-17/5

2007-12-07 05:11:54 · 6 answers · asked by Mzee 3

Is there any formula to figure out what size the boxes inside will be?

2007-12-07 05:10:08 · 4 answers · asked by perplexed 1

2007-12-07 04:56:05 · 12 answers · asked by john d 2

The rovers which landed on our planet recently arrived from the blue planet populated by semi-intelligent monkeys.

(a)
Factrorize the key used by the monkeys for RF transmissions:
2635584251 5904431300 0846739054
0789899949 9590600959 1863538978
0393231065 3506388103 9671393275
4977165052 1774839881 8589045025
8537288672 7012946683 3179989061
5451420223 0157347553 7565932947
0561698418 9979055120 0701325708
5592408135 0377432474 4677381003



(b)
Orbital period of the blue planet is 0.5317 years.
Assuming that all orbits are co-planar and circular, and the monkeys used as little fuel as possible (they experience severe shortage of fuels) how long did it take for the spacecraft to get here? Express your answer in years.

2007-12-07 04:50:01 · 5 answers · asked by Anonymous

i can't use a graphing calculator for this
i'm supposed to graph it based on a simpler function with transformations such as phase shift, stretch,shrink and such.

for example, like y=2x^2 +2, i would graph x^2, and then shift it to the left by 2 and stretch it by a multiple of 2.
10 points for first explaination, thank you!

2007-12-07 04:49:24 · 3 answers · asked by Anonymous

what is today

2007-12-07 04:45:03 · 10 answers · asked by Anonymous

Subtract.
3y^3-2y^2+y-2 - y^3-y-1

2007-12-07 04:43:31 · 2 answers · asked by ? 3

Suppose E={x|x is a rational number and x^2<2}
then prove that supE=sqrt2.

2007-12-07 04:29:17 · 3 answers · asked by a5b14 1

A particle moves in the plane so that its position at any time t>=0 is given by:
x=cos(t) y=sin(2t)

Eliminate the parameter and find an equation in terms of x and y for the path of the particle.
Multiple choice:
A) y=x(1-x^2)^.5
B) y=2x(1-x)^.5
C) y=2x(1-x^2)^.5
D) y=2x(1-x^2)

I got y=2xsin(t) but I can't get rid of the "t". I've spent the last 10 minutes looking at a list of trig identities and none of them are doing me any good. I remember doing a problem like this before but I can't remember how to do it. So, if you could tell me how to do it I would appreciate it.

Thanks.

2007-12-07 04:05:16 · 2 answers · asked by godhimself48 1