FirstPostQuestions

[sxk1693]

This is my first post in calculator. OK I used think calculator was a joke, but I am rethinking my assumption after I got a 154 today!!!!!!

How do you do these(HDYDT):

A 2x6-10 is a 10ft long wooden plank with cross sectional dimensions of 2in. and 6 in. before finishing. The finishing operation removes 3/16 in from the sides but not the ends. What is the percent decrease in volume?

(rad) Solve for t nearest to zero if 18t^2sin(3t) = 6t+2. I did this problem correctly, but I had to graph it and find the zeroes. Any faster way?

What should my approach be on tests(1.Finish all numerical prob and come back to stated and geom probs or 2.Go with the flow and do everything in order). #2 got me a 154 while #1 got me a 45.

What do they mean by take off 2 points for SD probs. Do I take off 2 points instead of 7?

Sorry for the trivial questions, but I am only a beginner.
Thx in advance

[nsguy1350]

[Shawn]

A few notes: Please number problems when you post (that way we can look it up or at least make an organized response). Another note post the answer (so we know we are doing it right).
1)
[unparseable or potentially dangerous latex formula]
[unparseable or potentially dangerous latex formula]
[unparseable or potentially dangerous latex formula]
[unparseable or potentially dangerous latex formula]
[unparseable or potentially dangerous latex formula]
[unparseable or potentially dangerous latex formula]
2)
Yes, use an HP equation solver. Let me know if you don't know what I am talking about and I can help you later.
3)
Oh this is a non-math question.
Um depends on skill really, if you can finish all the punchers in under 15 then probably yes if not then probably go in order. I really need to know more about your normal test to answer this well.

[nsguy1350]

HP equation solver? I usually use the 89 for the solver, then use my HP for linear regression. Should I switch to HP solver instead? The 89 isn't bad at all to me, and I think the HP regression is much better.

Also, like what Shawn said, you should go through NCs first if you can finish in less than 15, which is not tough on the HP.
I can finish in less than 9, like 8:30 - 8:50, and I know you'll probably put more practice in than I have. Therefore, once you get your HP, work on speed, and then do the NC first method.

[iluvpink]

[Shawn]

[Shawn]

[nsguy1350]

Yes, Newton is the name of my coach. Well, I should refer to him as Mr.Newton, but I often address him (not directly) as Newton.
He is related to Isaac Newton though, like 12 generations back or something :P
He told my class that the first day of school freshman year.

[smeag]

what are the benefits of a ti-89 to a ti-83 +

[Shawn]