Mathematics - 15 June 2007

given the angle in degrees, and how to find the degree of the angle given all the lengths

2007-06-15 14:21:35 · 5 answers · asked by ? 4

use ordinary Interest as needed.

1) Bernie Hercher borrowed 8,000 for 180 days from Lion bank. The bank discountedd a note at 5%. What Proceeds does Bernie receive? And, Calculate the effective rate to the nearest hundredth percent.

2) Ron Prentice bought goods fro mShelly Katz. On May 8th Shelly gave Ron a time extension on his bill by accepting a 3,000, 8%, 180 day note. On August 16, Shelly dicounted the note at the bank at 9%. what proceeds does shelly katz receive?

3) On May 12, Scott Rinse accepted 8,000, 12%, 90 day note for a time extension of a bill for goods bought by Ron Prentice. On June 12 Scott discounted the note at Able bank at 10%What proceeds does scott receive?

2007-06-15 14:08:39 · 2 answers · asked by mistista07 6

f(x)= { x sin 2/x , x not equal to 0
{ 0 , x=0
determine if f '(0) exists and if it does, find its value

how would i do this? can you show me the easiest way to understand this? thanks

2007-06-15 13:37:56 · 3 answers · asked by ruby 2

A wheel of radius 14 inches is rotating about an axle and the angular speed of a ray from the center of the wheel to a point P on the rim is 7pi/4 radians per second. If P initially has coordinates (14,0) and the center of the wheel is at the origin, find the position (x,y) of P after t seconds.

2007-06-15 13:27:33 · 1 answers · asked by B.B. 3

I need the help to draw a graph thank you

2007-06-15 13:22:40 · 3 answers · asked by tony f 1

2007-06-15 13:18:24 · 4 answers · asked by Anonymous

2007-06-15 13:17:31 · 3 answers · asked by Anonymous

If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for both of them to paint the house together?

2 hours and 24 minutes
3 hours and 12 minutes
3 hours and 44 minutes
4 hours and 10 minutes
4 hours and 33 minutes

2007-06-15 13:02:33 · 5 answers · asked by Anonymous

Show whether the set of ordered pairs (x,y) below defined by each equation is a function.

(a) y = x^3 - 3x

(b) x + 2y^2 = 1

2007-06-15 12:51:17 · 3 answers · asked by planetmath 1

If f(x) = (x - B)/(x - A). f(2) = 0 and f(1) is undefined, what are the values of A and B?

2007-06-15 12:50:01 · 2 answers · asked by planetmath 1

1. The volume of the box is represented by (x^2 + 5x + 6) (x + 5). Find the polynomial that represents the area of the bottom of the box.
Answer: (x+2)(x+3)

2. 5a-12/a^2-8a+15 - 3a-2/a^2-8a+15
answer: 2/a-3

2007-06-15 12:34:45 · 4 answers · asked by joe b 1

A cubical block of ice is melting in such a way that each edge decreses steadily by 5.2 cm every hour. At what rate is its volume decreasing when each edge is 5 meters long?

Solution: Let l=l(t) be the length of each edge at time t. Then the volume of the block is given by V = _______ .

Since the length of each edge is changing in time, we conclude that the volume V is also a function of time t. We note that the rate of change of l is constant and that is given as [(dl)/(dt)]= _______cm/h = ________m/h.

The question is to find the rate of change of V when
l= ____________m.

The chain rule gives

dV/dt = (dV/dl)*(dl/dt)

Therfore , when each edge is 5 m long, the rate of change of the volume of the ice block is ________m3/h.

I don't know how to approach this question..
Please answer..
Thank you

2007-06-15 12:32:18 · 3 answers · asked by Anonymous

2007-06-15 12:24:57 · 4 answers · asked by blah. 1

The function y=e^(rx) satisfies the equation
y"-8.3 y'+16.66 y=0

if r =___________ or if r = __________ .

Can anyone help me with this question

I don't get it..

Thank you

2007-06-15 12:15:32 · 2 answers · asked by Anonymous

2007-06-15 12:07:27 · 7 answers · asked by Anonymous

An Executive at Westinghouse Canada drives from his home in the suburbs near Toronto to his office in the Center of the city. His driving times can be approximated by the normal distribution with a mean of 45 minutes and a standard deviation of 8 minutes.
a) Somedays there will be accidents or other delays, so the trip will take longer than unusual. How long will the longest 10% of this trip???
Please anyone answer this question with explanation, I cannot figure the answer out. Thanks!!!!

2007-06-15 12:02:29 · 1 answers · asked by Secret 2

2007-06-15 11:53:50 · 8 answers · asked by Juan Enrique 2

2007-06-15 11:19:44 · 1 answers · asked by jennifer 1

2007-06-15 11:15:16 · 1 answers · asked by Anonymous

how do i solve this math problem I know i must first find the lowest common denominator

2007-06-15 11:11:43 · 8 answers · asked by wendy e 1

cos(3t)cos(t)=sin(3t)sin(t)

I have gotten all the way to:

(cos t)^4+(sin t)^4=6(sin t)^2(cos t)^2

Could you check that and see if it is right and show me how to get further.

2007-06-15 10:45:50 · 6 answers · asked by B.B. 3

Two friends, Al and Jo, have a combined mass of 180 kg. At the ice skating rink, they stand close together on skates, at rest and facing each other. Using their arms, they push on each other for 1 second and move off in opposite directions. Al moves off with a speed of 9.1 m/sec in one direction and Jo moves off with a speed of 10.9 m/sec in the other. You can assume friction is negligible.

What is the mass of Al?

Thank you so much for your help.

2007-06-15 10:42:38 · 5 answers · asked by goboilers21 2

i only got up to eleventeen.

2007-06-15 10:13:08 · 3 answers · asked by mizike 2

2007-06-15 10:06:36 · 31 answers · asked by mizike 2

I got this question earlier this week in my Maths GCSE paper. I had no idea how to solve it but I think the solution is 1 so I wrote that, hopefully I'll get some marks. Anyway I was curious if I was right, and how you're actually supposed to solve it.

2007-06-15 09:28:41 · 5 answers · asked by Clapflam 2

i cant figure this out someone please help me. i am studying for a algebra 2 final and its on monday! please help!

2007-06-15 08:56:15 · 11 answers · asked by Joann f 1

2007-06-15 08:37:56 · 11 answers · asked by Anonymous

2007-06-15 08:30:56 · 5 answers · asked by gigglewabbit 1

i want to calculate the volume of the tetrahedron type figure formed in the folowing manner....take a tetrahderon of length r and a sphere of adius r....place the tetrahedron such its one corner lie on the center of sphere and other three corners on the surface of the sphere...from the three corners instead of joining through straight plane (triangular) take the curved surface of the sphere....
hence the figure has three faces of tetrahedron and the fourth one as a part of sphere..!!

2007-06-15 08:29:04 · 1 answers · asked by sharma_abhi_itbhu 1

possible answers are
a. 360
b. 380
c. 3420
d. 6840

2007-06-15 08:28:30 · 6 answers · asked by Trinity 1