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Search Tech-Forums - link takes you to our Forum's search page. Note: The following is only a text archive! To view the actual forum discussion, please visit our website at http://www.tech-forums.net Pages:1 A slew of MATH PROBLEMS; All for you guys ;)(Click here to view the original thread with full colors/images)Posted by: septoid2 Alright guys, only respond if you know what you are doing. The answers to these problems determines 10% of my grade in math :P Any help would be appreciated greatly :) [QUOTE]If f(x)=x^2 a) Sketch y=2f(1/2x)+1 b) State domain and range of the transformed graph. [/QUOTE] [QUOTE] For the following function y=-2cos(x-pi/2)-2 a) Sketch one complete cycle labelling all 5 major points (Make tables of values). b) State domain and range of the cycle. [/QUOTE] [QUOTE]In the following geometric series.. 1/2 + 1/4 + 1/8 + ..... 1/1024 a) Find a, r, n and tn b) Find Sn [/QUOTE] [QUOTE]In the following arithmetic sequence 5/2 + 4 + 11/2 + .... 100 a) Find a, d, n and tn b)Find Sn [/QUOTE] [QUOTE]Maria recieved an insurance settlement of $80,000 which she invested at 5.2% per annum, compounded monthly, to provide a payment each monthfor 10 years, starting next month. a) How much will each payment be? b)How much will Maria's insurance give her all together? [/QUOTE] Thaaanks guys. Posted by: Lord AnthraX wow the first 2 are way above my head :eek::wooha: Wait for Chankama to come;):D Posted by: septoid2 Out of 100 random questions on a culminating, those are the only ones I couldn't get, or didn't have time to. Argh. Posted by: septoid2 Where is Chankama?!@ Posted by: AnthraX I decided to choose the easiest ones. At least for me. Sorry, I can't help you on the others. If you want me to show the work for this, just tell me, but for now I'll just tell you what I got. [QUOTE]In the following geometric series.. 1/2 + 1/4 + 1/8 + ..... 1/1024 a) Find a, r, n and tn b) Find Sn [/QUOTE] [QUOTE]In the following arithmetic sequence 5/2 + 4 + 11/2 + .... 100 a) Find a, d, n and tn b)Find Sn [/QUOTE] I couldn't tell what you needed for a, n, or tn. I assume the a was just the first term of the series? and n or tn would be the term number for the last number of the series. And that Sn was the sum of the numbers. Geometric series: a=1/2 r: 1/2 n or tn=8 Sn=255/256 Arithmetic series: a=5/2 d= 3/2 n or tn= 66 Sn= 6765/2 or 3382.5 Posted by: Crysalis [QUOTE][i]Originally posted by septoid2 [/i] [B]Where is Chankama?!@ [/B][/QUOTE] Posted by: septoid2 [QUOTE][i]Originally posted by AnthraX [/i] [B]I decided to choose the easiest ones. At least for me. Sorry, I can't help you on the others. If you want me to show the work for this, just tell me, but for now I'll just tell you what I got. I couldn't tell what you needed for a, n, or tn. I assume the a was just the first term of the series? and n or tn would be the term number for the last number of the series. And that Sn was the sum of the numbers. Geometric series: a=1/2 r: 1/2 n or tn=8 Sn=255/256 Arithmetic series: a=5/2 d= 3/2 n or tn= 66 Sn= 6765/2 or 3382.5 [/B][/QUOTE] Great I got the same results !! :) Posted by: AnthraX [IMG]http://img100.imageshack.us/img100/7849/cosfunc0fw.jpg[/IMG] Heres your cosine equation graphed using the PowerToy Calculator. Don't exactly know what the "5 major points" are. Go here if you want it: [url]http://www.microsoft.com/windowsxp/downloads/powertoys/xppowertoys.mspx[/url] This stuff you have is weird. I just took a final over this today and yesterday, and we learned all this kind of stuff this year. However, this looks the same, but different. It's weird. I don't really know how to explain it. What math class is this for? I just finished my year of pre-calculus. Posted by: aliasaid [QUOTE][i]Originally posted by septoid2 [/i] [B]quote: -------------------------------------------------------------------------------- If f(x)=x^2 a) Sketch y=2f(1/2x)+1 b) State domain and range of the transformed graph[/B][/QUOTE] where it says f(1/2x) is that 0.5x ? or 1/(2x) ? its not very clear.. and it makes a huge difference... Posted by: joshd [QUOTE][i]Originally posted by AnthraX [/i] [B] Go here if you want it: [url]http://www.microsoft.com/windowsxp/downloads/powertoys/xppowertoys.mspx[/url] [/B][/QUOTE] i get "invalid drive N:" if i try and install. i dont even have a drive N:... :confused: i expect the 5 major points would be the intercept, and the peaks and troughs of the curve. Posted by: evelmunkey [quote] If f(x)=x^2 a) Sketch y=2f(1/2x)+1 b) State domain and range of the transformed graph. [/quote] A)y=2(f(.5x))+1 y=2((.25x^2)+1 y=.5x^2+1 Enter that into a graphing calculator! It should be a parabola with the vertex at (0,1) and two other points would be (1, 1.5) and (-1, 1.5) B) Domain (-infinity, +infinity) Range [1, +infinity) ...I can do the others if no one else does, my girlfriend is just ready to go to dinner....I will be home a few hours. Posted by: septoid2 Nah don't worry, I solved em all second period before my huge culminating test. I'm sure I got 100% on the test, but yeah alot of you were spot on. I appreciate the help given. Thanks again guys, and thats that for grade 11 math, SUMMER TIME B!TCHESSSSSSSSSSSSS. Posted by: Spartan loser, i still have my pre-AP exam, which will most certainly not be very fun Posted by: Chankama hehehehe.. good to see you guys were at it. :). I was away for a couple of days.... :D vBulletin Copyright ©2000 - 2003, Jelsoft Enterprises Limited. PPC Management vB Easy Archive Final - Created by Xenon |