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Homework 1 M408C pg1 - 8 003 10.0 points United Express an...

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tong (eyt88) – Homework 1 – knopf – (55420) 1 This print-out should have 20 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. This assignment covers some review mate- rial, as well as new material from Sections 2.1, 2.2, and 2.3. 001(part1of2)10.0points An open box is made from an 8 inch × 12 inch rectangular piece of cardboard by cutting equal squares from the corners and turning up the sides as shown in the figure x x x x x x x x Determine the volume V of the box as a function of x . 1. V ( x ) = 96 x - 40 x 2 - 4 x 3 2. V ( x ) = 96 x - 40 x 2 + 2 x 3 3. V ( x ) = 192 x - 40 x 2 + 4 x 3 4. V ( x ) = 96 x + 40 x 2 + 4 x 3 5. V ( x ) = 96 x - 40 x 2 + 4 x 3 002(part2of2)10.0points What is the domain of V for a box that makes physical sense? 1. domain = [0 , 4) 2. domain = (0 , 5) 3. domain = (0 , 4) 4. domain = (0 , 4] 5. domain = (0 , 8)
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Unformatted text preview: , 8) 003 10.0 points United Express, an expensive nationwide package delivery service, charges a base price for overnight delivery of packages weighing 1 pound or less and a surcharge for each addi-tional pound (or fraction thereof). If a customer would be billed $34 for ship-ping a 6 pound package and $124 for shipping a 21 pound package, Fnd the delivery cost of a 27 pound package. 1. delivery cost = $158 2. delivery cost = $154 3. delivery cost = $162 4. delivery cost = $160 5. delivery cost = $156 004 10.0 points If 1 2 3-1-2-3 1 2 3 is the graph of y = a | cos mx + c | , ( m > 0) , on [-3 , 3], Fnd the values of m and c . 1. none of these 2. m = π, c = 1 2 3. m = π, c =-1 2...
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