WK1HW - JO

# WK1HW - JO - W K1HWJO Section 1.1 23. (3-5)-[2-(32-13)] =...

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WK1HWJO Section 1.1 23. –(3-5)- [ 2-(3 2 -13) ] = -(-2)- [ 2-(-4) ] = 2-(2+4) = 2-6 = -4 25. 2(-3) + 3/-2 – 2/ -16 64-1 = -6 + 3/-2 – 2/-4 8-1 = -12/2 – 3/2 +1/2 7 = -14/2 7 = -7/7 = -1 51. a) B = .455W (.0254H) 2 = (.455)(119) (.0254)(5x12+9) 2 = 54.15 .0254(69) 2 = 54.15 (1.75) 2

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= 54.15 3.07 = 17.64 b) B is 19 < 25, Steffi Graf is only 17.64, So, No 52. a) .455(153) .0254(70) 2 = 69.62 3.16 = 22.03 b) B is 19 < 25, Jackie Joyner-Kersee is 22.03, So, Yes 53. a) .455(180) .0254(74) 2 = 81.90 1.88 2 = 81.90 3.53 = 23.20 b) B is 19 < 25, Tiger Wood is 23.20, So, Yes 54. a) .455(300) . 0254(85) 2 = 136.50 2.16 2 = 136.50
4.66 = 29.29 b) B is 19 < 25, Shaquille O’Neal is 29.29, So, No Section 1.2 25. (3z+5)(4z 2 -2z+1) = 12z 3 -6z 2 +3z+20z 2 -10z+5 = 12z 3 +14z 2 -7z+5 27. (6k-1)(2k+3) = (6k)(2K-3)+(-1)(2K+3) = 12k 2 -18K-2k-3 = 12k 2 -20k-3 29. (3y+5)(2y+1) = 6y 2 +3y+10y+5 = 6y 2 +13y+5 33. (6.2m-3.4)(.7m+1.3) = 4.34m 2 +8.06m-2.38m-4.42 = 4.34m 2 +5.68m-4.42

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34. 2p-3 [ 4p-(8p+1)
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## This note was uploaded on 01/17/2010 for the course MATH 105 taught by Professor Dobra during the Spring '09 term at Upper Iowa.

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WK1HW - JO - W K1HWJO Section 1.1 23. (3-5)-[2-(32-13)] =...

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