Exam 1 Practice 2

Exam 1 Practice 2 - F r.F-_.-* , - ,i A *,TII L 27 M TDTERM...

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F r.F-_- .-** - ,i I , A*,TII L27 MTDTERM #1 18 October 2007 SPECIAL CODE: 101807 p. 2 of 6 1. Theiine 2S'-6:4(x+2) hasaslopeand y-(i.e.vertical)intercept(respectively): a12and'l4 b)2and1 c)2and7 d)4and14 e)4and7 2. Theaveragerateofchangeofthefunctionf(x)=2x3+5x-9 befween x=0and x=4 is: a) 32.5 b) 139 c) 37 d) 148 e) 130 3. It is knovvn that a cost function for producing digital cameras is linear. The cost of producing 300 cameras is $30,000 and the cost of producing 500 cameras is s40,000. Given this information which statement is true? a) The fixed cost of producing cameras is 550,000 b) The fixed cost of producing cameras is S50 c) The variable cost of producing cameras is $15,000 d) The variable cost of producing cameras is $50 e) None of the above statements are true 4. The Ustore sells sweatshirts for $65 each. If the fi:red cost of producingthese sweatshirts is S12,000 and the variable cost is $15 per sweatshirt, then number of sweatshirts sold at the break even point is closest to: a) 745 b) 17 c) 348 d) 240 e) 126 5. The rate at vvhich play dough decomposes is modeled exponentially (where time t is in months )
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This note was uploaded on 11/30/2011 for the course MATH 127 taught by Professor Rudvalis during the Fall '07 term at UMass (Amherst).

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Exam 1 Practice 2 - F r.F-_.-* , - ,i A *,TII L 27 M TDTERM...

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