Mathematics - 22 October 2007

2y-3x=2 & 2y-3x=4

2007-10-22 09:41:01 · 3 answers · asked by Anonymous

1) y+a over 3= c ...solve for y

2) k= prt... solve for r

3) H= ( 0.24 ) j^2 Rt............solve for R

Please and thank you so much!

2007-10-22 09:38:37 · 3 answers · asked by Soprano 2

What is the period? fractions confuse me

2 sin 4(x+pi/4)

2007-10-22 09:38:02 · 2 answers · asked by PiNk-PrInCeSs 3

3a+1 (divided by) 5 = 2

...please answer in STEP by STEP form because I dont understand AT ALL.

2007-10-22 09:37:45 · 2 answers · asked by Anonymous

Let cos alpha = (sqroot 5) / 5: 0 < alpha < pi/2; sin beta = -4/5: -pi/2 < beta < 0. Find the exact value of the following:

a) cos(alpha - beta)

b) tan(alpha + beta)

please help me and explain this to me, having a hard time, thanks!!

2007-10-22 09:36:34 · 1 answers · asked by Anonymous

2007-10-22 09:35:09 · 3 answers · asked by Diana 1

Which of the following functions
A. f(x)=1/(x-1) on [0,2]
B. f(x)=x^1/3 on [0,1]
C. f(x)=|x| on [0,1]
satisfy the hypotheses of the MVT?

I put only B but I got that wrong. It can be two or more answers... thank you!!

2007-10-22 09:33:03 · 3 answers · asked by ilovecoach 3

/\JKL has vertices J(0, -6), K(6, 3) and L(-3, 6). Write the coordinates of its image /\J'K'L' under the dilation D1/3.

2007-10-22 09:33:02 · 1 answers · asked by blahhhhhh 2

Determine if Rolle's Theorem can be applied to
f(x)=(x²+3x-18)/(x+9) on the interval (-6,3), and if it can, find all numbers c satisfying the conclusion of that theorem.

When I worked it out, I got c=-3,-15 and Rolle's Theorem not applicable. Both turned out to be wrong :( Thanks for the help!

2007-10-22 09:28:28 · 4 answers · asked by ilovecoach 3

In algebra we are learning about special equations. Which are equations without a solution. Can you please give me an algebraic equation that does not have a solution.

2007-10-22 09:27:21 · 5 answers · asked by Anonymous

I don't understand this at all, so when you answer, answer STEP by STEP. p.s. / means divide

3a+ 1 / 5=2

2007-10-22 09:23:12 · 2 answers · asked by Anonymous

2007-10-22 09:14:37 · 4 answers · asked by Anonymous

{5 -1 -1 -8 : 5 }
{10 -2 4 2 : 8}


and the second one is :

{ 1 -2 1 -4 : -3}
{ 1 3 7 2 : 18}
{ 1 -12 -11 -16 : -37}


thanks a million!!! Im sooo stuck :(

2007-10-22 09:13:42 · 1 answers · asked by Anonymous

Find measure of angle RSU if
m m and
m
Thanks

2007-10-22 09:10:22 · 6 answers · asked by Anonymous

2007-10-22 09:03:54 · 4 answers · asked by jsuffianaz 2

here is the equation: C(x)= 0.001x^3 + 0.07x^2 + 19x + 700

the second part is to predict c(27) using the answer from the first part.


i dont know how to do it, please help.

2007-10-22 09:03:48 · 2 answers · asked by Sheee-Luh-Gee 1

On the website below, go all the way down until you get to the section where it says "Alternate Exterior Angles". See the D and the B on that illustration? what would the relation of them be. Ex. Consecutive Interior, Alternative Exterior (Those are not choices, just examples of others.

Site:
http://www.mathleague.com/help/geometry/angles.htm

2007-10-22 09:03:39 · 2 answers · asked by Anonymous

How do you prove that the quaternion group is not isomorphic to the dihedral group D_4?

the quanternion group looks like this
.........| e a a^2 a^3 b ba ba^2 ba^3
----------------------------- -------------------
e.......| e a a^2 a^3 b ba ba^2 ba^3
a.......| a a^2 a^3 e ba^3 b ba ba^2
a^2...| a^2 a^3 e a ba^2 ba^3 b ba
a^3...| a^3 e a a^2 ba ba^2 ba^3 b
b.......| b ba ba^2 ba^3 a^2 a^3 e a
ba.....| ba ba^2 ba^3 b a a^2 b^3 e
ba^2.| ba^2 ba^3 b ba e a a^2 a^3
ba^3.| ba^3 b ba ba^2 a^3 e a a^2

2007-10-22 08:42:35 · 2 answers · asked by Anonymous

that is built to a scale of 2.5 inches to 14 inches. Round the answer to the nearest tenth of an inch.

2007-10-22 08:36:01 · 2 answers · asked by LOU C 1

I had a lecture about quadratic functions , then while reading the lecture papers i could see that we may get the value of x by this equation = x= - b/2a .. and y < m> by this equation - d/4a ... then i found this writen in the lecture papers that the vertex of the quadratic function may be considered as following ( -b/2a , d/4a ) the y or m wasnt followed by a negative mark , so which is right .. should it be followed by a negative mark or no ......... ?

2007-10-22 08:35:29 · 3 answers · asked by Anonymous

y=3 cos x/5

2007-10-22 08:30:19 · 3 answers · asked by PiNk-PrInCeSs 3

f(x) = 6x4 + 2x3 -3x2 +2

Can someone please explain how to solve this one?

2007-10-22 08:23:20 · 4 answers · asked by Hamid K 1

Show the work please

2007-10-22 08:20:29 · 27 answers · asked by Anonymous

A girl has four math books, three novels and two books of poetry. She wants to arrange them on her shelf so that all the math books are to the left, all the novels are in the middle, and all the poetry books are to the right. How many different arrangements of books are possible?

2007-10-22 08:18:26 · 13 answers · asked by Jerry S 1

an experienced bank auditor can check a bank's deposits twice as fast as a new auditor. Working together it takes the auditors 18 hrs. to do the job. How long would it take the experienced auditor working alone?

2007-10-22 08:18:07 · 4 answers · asked by amy f 1

. If there are 230 girls at the dance, how many boys are in attendance?

2007-10-22 08:10:42 · 11 answers · asked by LOU C 1

For what numbers a and b is the system of equations below satisfied by x = b and y = a?

x−y=a
7x+5y=76

2007-10-22 08:05:37 · 5 answers · asked by Byron 1

Ok so the equation is X to the 4 + 3X to the 3 - 3X to the second + 3X - 4. The roots we have are 1 and -4, I need all the roots. How do I do this?

2007-10-22 08:05:37 · 3 answers · asked by Emily H 2

can be connected to form a rectangle with sides parallel to the sides of the grid?

My answer is 18 yet the correct answer is higher.

Any assistance would be greatly appreciated.

2007-10-22 08:00:40 · 2 answers · asked by Anonymous

I'm having trouble with the following proof:

If the domain of a continuous function is an interval, show that the image is an interval. Give examples where the image is an open interval.

Anyone able to show me that way? Thanks

2007-10-22 07:42:25 · 1 answers · asked by mathishard31415 1