Replacement Quiz 7 due by 11_30 May 9, 2012

# 8 33 8 33 points previous answers l arcalc9 2 6 018

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Unformatted text preview: u tility to verify you r resu lt. 18 (9 i − 1 ) i = 1 1521 1521 Solu tion or E xplan ation 18 18 9 i − 1 = 9 i = 1 i = 1 1 8 (1 9 ) − 1 8 = 1 5 2 1 i − 1 (1 8 ) = 9 2 Show My Work beta (Option al) 8. 8. 33/ 8. 33 points | Previous Answers L arCalc9 2. 6. 018. All edges of a cu be are expan din g at a rate of 9 cen timeters per secon d. (a) How fast is th e volu me ch an gin g wh en each edge is 4 cen timeter(s)? 432 432 cm3/sec (b) How fast is th e volu me ch an gin g wh en each edge is 1 3 cen timeters? 4563 4563 cm3/sec Solu tion or E xplan ation V = x3 dx dt dV dt = 9 2 = 3 x dx dt (a) Wh en x = 4 , dV dt (b) Wh en x = 1 3 , = 3 (4 )2(9 ) = 4 3 2 cm3/sec. dV dt = 3 (1 3 )2(9 ) = 4 5 6 3 cm3/sec. Show My Work beta (Option al) 9. 8. 33/ 8. 33 po...
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## This note was uploaded on 04/18/2013 for the course MATH 1411 taught by Professor Marcus during the Spring '12 term at Texas El Paso.

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