Mathematics - 28 September 2007

as topic, thanks!

2007-09-28 20:58:58 · 5 answers · asked by vicehope 1

equation of a plane: ax+bY+cZ+d=0. I need to be able to find abc and d for any give plane.

Thanks

2007-09-28 20:30:21 · 4 answers · asked by Tom H 2

if x*x=49
what are the possible values of x

2007-09-28 19:51:53 · 7 answers · asked by Anonymous

What will the effects be on someone that weights about 190-200 lbs, if they jump off something that is about 10 feet high?

2007-09-28 19:46:56 · 12 answers · asked by Jean H 1

Can you teach me the step-by-step process in finding the zeros of a quartic function? Kindly use this:


P(x) = x^4 - 4x^3 + 3x^2 + 4x - 4 where one zero is 2


Thanks.

2007-09-28 18:46:16 · 6 answers · asked by Anonymous

100/43 what number will be in the house?

will my answer be 0.43 or 2.33

2007-09-28 18:09:09 · 5 answers · asked by ALESANA 7

i know the answer is 27 but i have no idea why. can anybody explain it to me?

2007-09-28 18:01:13 · 13 answers · asked by Anonymous

the title speaks for itself

2007-09-28 17:39:27 · 19 answers · asked by LC 2

5x + y - z = 6
x + y + z = 2
3x + y = 4

solve for x, y, and z.

2007-09-28 17:24:10 · 4 answers · asked by sharizzle 1

What does the side of another cube measure if it is to be twice the volume of the first cube?

2007-09-28 17:22:52 · 4 answers · asked by Anonymous

The function V(x)=X^3 may be used to find the volume of a cube if we are given the length x of a side

2007-09-28 17:13:35 · 10 answers · asked by Jetboy 1

here are some problem #1. 1/4 #2. 3/5 #3. 4/9 #4. 1/8 1/6 20/40 6/15 35/50 help please!

2007-09-28 17:07:37 · 6 answers · asked by Valerie5_0 2

The green circle is the largest of the 3 circles. The red circle is the smallest circle and is located at the centre of the green circle. The yellow circle is the medium sized circle that touches the circumference of the small red circle and touches the circumference of the large green circle. Knowing that both the small red circle and the medium yellow circle are smaller than the large green circle and are placed within the large circle. The centre of the large green circle is O. The smallest circle has centre O and radius 2x centimetres.
The large circle has centre O and radius 2y centimetres. The third circle touches both the other two circles s shown. The three regions formed are coloured red, yellow and green as shown.

Q1) Explain fully why the radius of the third circle is (x + y) centimetres.

Write down, in terms of ㅠ, x and y, expressions for the area of the region that is coloured Q2) yellow,
Q3) green.

The area of the green region is twice the area of the yellow region.
Q4) Use this information to write down an equation involving x and y, and show that it simplifies to y^2 – 6xy + 5x^2 = 0.

Q5) Calculate the fraction of the design that is coloured yellow.

2007-09-28 16:50:39 · 4 answers · asked by Anonymous

does a scatter plot have outliners? or is it a box and whisker plot that has outliners?

2007-09-28 16:10:03 · 2 answers · asked by lil_angel_ztar 2

Solve. 10x 2 + 20 x + 1 = 0

x = (smaller value)

x = (larger value)

2007-09-28 16:01:57 · 5 answers · asked by M M 1

Solve. 3t^ 2 + 18^t + 3 = 0

t = (smaller value)

t = (larger value)

2007-09-28 15:59:17 · 6 answers · asked by M M 1

Find an equation for the line tangent to f(x) = 7 x e^x ? ?
Here is question:

Find an equation for the line tangent to the graph of

f(x) = 7 x e^x

at the point (a,f(a)) for a=1.

the answer is:
y =


I do not know how to do this, any help would be great, I keep getting 19.028 and 38.0559 but that is no help it seems

thank you so much!

2007-09-28 15:39:12 · 6 answers · asked by Jon-O 1

of this sequence are:

1, 0, 0, 1, 0, 0, 0, 0, 1, 0

2007-09-28 15:27:51 · 1 answers · asked by Joe 1

55+x+105= 180

2007-09-28 15:24:43 · 13 answers · asked by Anonymous

2007-09-28 15:15:50 · 5 answers · asked by Anonymous

Two ships start out from the same point. The first ship plans to sail northeast on a constant heading, going three mi east for each four mi north, at a speed of 30mi/h. The second ship plans to sail due north, and then sail due east. At what speed must the second ship sail in order to guarantee that they will rendezous(meet) ? If they plan to rendezous in 6h, how long should the second ship sail north before it heads east?

Ok so;should i solve this by a rate times time equals distance? Or actually plot the slopes; :( i dont know how to do this. Not sure how to graph the problem >:O. help?

2007-09-28 14:49:15 · 3 answers · asked by Kate! 3

please solve for x

2007-09-28 14:44:03 · 5 answers · asked by kyle p 1

x = (smallest value)

x =

x =

x = (largest value)

2007-09-28 14:38:07 · 2 answers · asked by Yao 1

x = (smaller value)

x = (larger value)

2007-09-28 14:35:57 · 8 answers · asked by Yao 1

2007-09-28 14:32:42 · 15 answers · asked by Anonymous

Algebra Help!!!!! ASAP!?
ok, please help me. I've got an assignment due monday and my teacher sucked at explaining it. it is about adding and subtracting expressions. for ex.
(2a-1) - (-5a-5)
are you supposed to turn the minus sign in the middle to a plus sign and then change all the sign of each term in (-5a-5)? then do you write it out like this?
(2a +5a) + (1+5)
and would the answer be 7a + 6 ???

if i'm wrong please tell me how and be clear on the directions. i'm only in 7th grade.

2007-09-28 14:17:31 · 9 answers · asked by Anonymous

x = (smallest value) x = x = (largest value)

2007-09-28 13:53:33 · 4 answers · asked by mir d 1

help

2007-09-28 13:27:01 · 4 answers · asked by Anonymous

2007-09-28 13:19:06 · 6 answers · asked by Boogie 2

A person is chosen at random from a large population containing 50% males and 50% females.

A – event that the person is male
B – event that the person is female

Are A and B independent events? Justify your answer.
Do you find this answer rather unintuitive? Explain.

2007-09-28 13:15:03 · 5 answers · asked by Dr D 7