# assignment sheet-WA1_MAT-115-mar18.docx - MAT-115...

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MAT-115: INTERMEDIATE ALGEBRA Written Assignment 1 1.1: Use the Language of Algebra Determine whether each number is divisible by 2, 3, 5, 6, and by 10. 1. 48 Is divisible by 2 if last digit is 0,2,4,6, or 8 3 if sum of digits is divisible by 3 6 if it is divisible by both 2 and 3 2,3,6 2. 20,355 3 if sum of digits is divisible by 3 5 if last digit is 0 or 5 3,5 Find the prime factorization. 3. 60 5 and 12 5*3*4 5*3*2*2 4. 200 25*8 5*5*4*2 5*5*2*2*2 Find the least common multiple for the pair of numbers. 5. 9, 12 9*4-=36 12*3=36 36 Simplify each expression using the order of operations. 6. 5 + 7 ( 2 + 6 ) 5+7*2+7*6 5+14+42 61 7. 3 [ 1 + 6 ( 4 3 ) ] 3+18(12-9) 3+18(3) 3+54 57 Copyright © 2018 by Thomas Edison State University. All rights reserved.
Evaluate the expressions. 8. When x = 2 , a. x 5 2*2*2*2*2 32 b. 5 x 5*5 25 c. 3 x 2 4 x 8 3(2*2)-4(2)-8 12-8-8 -4 9. When x = 4 and y = 3 , a. x 2 + 2 x 5 y 2 (4*4)+2(4)-5(3*3) 16+8-5(9) 16+8-45 24-45 -21 Simplify the expression by combining like terms. 10. 5 x + 3 + 4 x 5 + 7 x 2 5x+4x+7x 3-5-2 16x-4