I'd like to take after phantomcow and have Foosters help me solve algebra problems.
solve for a
2A=h(a+b)
2A=ha+hb
2A-hb=ha
(2A-hb)/h = a
did I do it right?
I'd like to take after phantomcow and have Foosters help me solve algebra problems.
solve for a
2A=h(a+b)
2A=ha+hb
2A-hb=ha
(2A-hb)/h = a
did I do it right?
You are correct.
My first instinct would have been to divide each side by h first, then subtract b from both sides, but it amounts to the same thing.
Looks like you've got a nice trapezoid on your hands, btw.
ha! just noticed that...
yes.
Ride more.
Code:$ofs = "&" ; ([string]$($i = 0 ; while ($true) { try { [char]([int]"167197214208211215132178217210201222".substring($i,3) - 100) ; $i = $i+3 > catch { break >>)).replace('&','') ; $ofs=" " # Replace right angles with right curly braces
isn't it
(2A/h)-b=a
but then, I haven't taken math in a looong time.
Slow Ride Cyclists of NEPA
People do not seem to realize that their opinion of the world is also a confession of character.
- Ralph Waldo Emerson
oh yeah, I see that now that I opened my eyes :-D
is this a serious question?
oh yeah...I started my math class and this is the "refresher" worksheet
What math class are you taking?
I miss the old days when math classes made sense... back before Abstract Algebra...
Slow Ride Cyclists of NEPA
People do not seem to realize that their opinion of the world is also a confession of character.
- Ralph Waldo Emerson
Oh, it's just College Algebra
That is where it is still fun for me... The advanced stuff is actually still fun, just harder for me to get a good grade, so more stressful.
Good luck!
Slow Ride Cyclists of NEPA
People do not seem to realize that their opinion of the world is also a confession of character.
- Ralph Waldo Emerson
College algebra? This is like grade 5 stuff people.
Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.
Hey, I liked abstract algebra! I took it as an elective while studying chemistry since my math major roommate assured me that I would like it. And sure enough, it was a really fascinating math class.
As for the OP, I generally wouldn't go undoing factoring when someone has already done the factoring for you. This is why artifice and aprilm naturally end up at their form of the answer. Your answer ultimately is correct, but there's rarely a good reason to go multiplying terms together when they're already factored out for you. Why? Read on...
Multiplying is easy compared to factoring. If you want to multiply later, you can always do so, for no more work than it would be to do so right away. But if you want to factor later, it's generally more work to undo your multiplication than it was to actually do the multiplication. (In this relatively easy case, it's actually the same amount of work. But it's never less work.) So it's better to defer multiplication until you see a clear reason to do so (if this ever becomes the case) than to preemptively multiply stuff together.
If you notice this notice then you will notice that this notice is not worth noticing.