Many Equations - Linear Algebra - Quiz Solution, Exercises of Linear Algebra

Download Many Equations - Linear Algebra - Quiz Solution and more Exercises Linear Algebra in PDF only on Docsity!

Math 205 AB Quiz 04 page 1 10/12/2012 Name >of tastek coldfron 2 dd version 1. Suppoer={5 3 1] wile i s|aaunwa (| 3% @ 5 2 10 |? oa z 280 240 |” Find the values of all those unknowns. Hint: it will be easy if you find them in more-or-less alphabetical order. There are many equations you can write down, but aim for those with as few unknowns as possible. A= SL +S + 13 = loebez2 20 (46 jms * polo) . ond al La 20:24 los 46% = 240 (e10 « 2 po » 8% cole, ) 0 +50 + 3h = 240 = 3b = 240-4o =/sS0 b +50 “9 r, be 2% +lo = 386 (% ia the 1%, 1%oloma iVN) % = 36 cea Yq Answers: a=|0 ¥ 6-150 | c= Yq 5s #34 +32 % 2o5+lok& +5 = 280 } S=1s0 % i Ss +H 753. (5 3 B]-L ° 205 +f£ =(30 2 | | '3 ol 6 ge |? t= 2 “ged ows x IT ool" = 20¢ tl0e + be = (20 +10 +50)(4) 1G] 1 | ==|30 80°] = 320 BONUS: How many pairs of numbers have to multiplied to find the product of a 3 x 7 by a7 x 10 matrix? Explain. (No credit for a guess). . He podrd. bee 3x10 = 30 entres Gach of chu require Frais —