Math Forum / Mathematics / Algebra Help / November 2004

0.262COS(a) - 3.5SIN(a) = -0.153
Solve for angle "a" in degrees.
HINT: a < 10 & a > 5

0.262COS(a) - 3.5SIN(a) = -0.153
Solve for the angle (a) in degrees.
Let's see who gets it right.  hint: a >5 &  a <10

Me again.
First, thanks "Guess who" for your help on my ellipse problem.
Could someone help me with this? :
I need to find the angle of rotation theta that will remove the xy-term in

Back again with another abstract algebra proglem. Hope I can get the
english terms somewhat correct.
I didnt know how to do the text an symbols here in a newsgroup so I put
it on a website. I did the symbols in MS Word so I just cross my fingers

I don't understand how to write an equation to these two problems:
An ellipse with foci at (-2, 4) and (-2, -2); major axis length of 10.
And
Ellipse, center ar origin, length of major axis 16 and y-intercepts (0, +-2)

I'm trying to factoring functions to enable myself to get the roots of the
equation
So for this example:
x²-7x+12

hi, i have a heating temp function in terms of time of a potato in a 200
degree oven.....
T(t)= 200-a e^-bt
and i also have a rate of change of 2 degrees C/ min when time=30, the

When a slope changes from positive to negative has nothing to do with the
point of inflection correct?

I have 2 equations they want me to find all values of x of one equations
that is parallel to the line of (y-x)=2   Now when I took the derivative of
(y-x)=2 and got 1 .  I took the derivative of the other function and set
equal to 1.  Am I on the right track.  Also I graph both ...

There is a free office suite called "Open Office", a product from Sun
Corporation, worth a look.  There is also an open forum discussion
group :
http://www.oooforum.org

I am trying to solve the follwoing 2 equations:
(x/5) + (y/2) = 5, x - y = 4
I am getting horrendously stuck, I multiplied the first by 10 to give x + y
= 50, where do I go from here?

Im doing a distance course in Abstract Algebra and I really could use
some help with the following problem.
Let 'a' and 'b' be two finite elements of a group. Let 'ab'='ba'.
Show that if GCD[[o(a),o(b)]=1, then o(ab) = o(a)*o(b).

4p + 3 = 2p    + 2p
Need the exact solution and the solution rounded to the nearest thousandths. I keep getting    P= -1 plus or minus the square root of seven over two.  That is not the right answer but I don't know where I am missing it.

I have an equation
15*(x)^3 - 15*(x)^2 = 0
I can only get it it to
15*x ( (x)^3 - x)=0

I want to distribute a sequence of images on a printed page in a
balanced way, and I'm looking for a formula, but haven't been able to
wrap my high-school dropout mind around it.
For example, these are optimal: