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WrittenAssignment3_MAT-105_RaymondMilek

WrittenAssignment3_MAT-105_RaymondMilek - Raymond Milek...

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Raymond Milek SID#0483682 11/3/2011 MAT-105 Section # 5.5, 6.1-6.3, 6.7, 6.10 Thomas Edison State College October, 2011 Semester Written Assignment 3 Section 5.5 58. Use the distributive property to multiply. Then, if possible, simplify the resulting expression. –1( a + b ) -1(a + b) (-1×a) + (-1×b) Answer: -1a + -1b =-1a + -1b 62. Use the distributive property to multiply. Then, if possible, simplify the resulting expression. 1 24 3 8 x - 1 24 3 8 x - (24×x/3) - (24×1/8) Answer: 8x-3 24x/3 - 24/8 8x - 3 Section 6.1 12. Evaluate the expression for the given value(s) of the variable(s). 2 , 3 x x - = - -(-3 2 ) -(-3×-3=9) Answer: -9 -(9)=-9 20. Evaluate the expression for the given value(s) of the variable(s). 2 7 5 11, 1 x x x + - = - 7×(-1 2 )+(5×-1)−11= Answer: -9 (7×1)+-5−11= (7+-5)−11= 2−11=-9
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30. Determine whether the value(s) is (are) a solution to the equation . 6 7 31, 4 x x - = - = - (6×-4)−7=31 -24−7=31 Answer: Yes 42. Cost of a Tour The cost, in dollars, for Crescent City Tours to provide a tour for x people can be determined by the expression 220 + 2.75 x . Determine the cost for Crescent City Tours
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