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Pg. 127/138 Homework

Pg. 127/138 Homework. Pg. 98 #58, 59 Pg. 110 #60 – 63, 66, 68 #53 x = 2 #54 (0, 2) #55 x = -2 #56 x = 5 #57 x = 3 #58 x = 0 #78 P = 5.15 x – (1.26 x + 34,000) #79 x = 19,537.28 lbs #80 19,358 lbs #81 A = 4 x 2 + 710 x

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Pg. 127/138 Homework

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  1. Pg. 127/138 Homework • Pg. 98 #58, 59Pg. 110 #60 – 63, 66, 68 • #53 x = 2 #54 (0, 2) #55 x = -2 • #56 x = 5 #57 x = 3 #58 x = 0 • #78 P = 5.15x – (1.26x + 34,000) #79 x = 19,537.28 lbs • #80 19,358 lbs #81 A = 4x2 + 710x • #82 2900 < 4x2 + 710x < 3900 #83 (3.99, 5.33) • #84 s(t) = -16t2 + 250t + 30 #85 portion in Q1 • #86 t = 2.47 sec, t = 13.15 sec • #88 symmetric about the y – axis #89 symmetric about the x – axis • #90 no symmetry #91 symmetric about the origin • #92 symmetric about all three #93 symmetric about the origin

  2. Word Problem Review • A rectangular fence is formed against a wall so that three of the sides are created by fencing. 500 feet of fencing will be used for the rectangle. What dimensions should the rectangle be so that the area is 5,000 sq ft? • Define the variables • Create an equation for the problem situation • Determine the domain of the problem situation • Graph the problem situation • Solve the problem situation

  3. Word Problem Review • The total value of 12 coins consisting of nickels, dimes and quarters is $1.40. There are four times as many dimes as nickels. Determine the number of each. • Define the variables • Create an equation for the problem situation • Determine the domain of the problem situation • Graph the problem situation • Solve the problem situation

  4. Word Problem Review • Sally sells cookies in the lunch room every day. She figures the daily price from the equation p = 3 + 0.05x – 0.02x2 . If revenue is R = xp, find the number of cookies Sally needs to sell to maximize her daily revenue. What is her maximum daily revenue? • Define the variables • Create an equation for the problem situation • Determine the domain of the problem situation • Graph the problem situation • Solve the problem situation

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