Do Now 9/10/09 Take out HW from last night. Take out HW from last night.  Text p. 12-13, #14-32 evens & 36 Copy HW in your planner. Copy HW in your planner.

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Do Now 9/10/09 Take out HW from last night. Take out HW from last night.  Text p , #14-32 evens & 36 Copy HW in your planner. Copy HW in your planner.  Text p. 19, #10-36 evens  Quiz sections Tuesday In your journal answer the following question. Suppose “#” is a special operation that “a # b” means 4a – 2b. What is 3 # 2? What is 2 # 3? Is # a commutative operation? In your journal answer the following question. Suppose “#” is a special operation that “a # b” means 4a – 2b. What is 3 # 2? What is 2 # 3? Is # a commutative operation?

Homework Text p.12-13, #14-32 evens & 36 14). 16). 18). 20). 22). 2 to the 5 th power; 24). 12 cubed; 26). 4 to the 4 th power; 28). 0.6 to the 4 th power; 30). 49; ). 2401; ). a in³; b lb

Evaluate the Expression x = x 3 = x 3 = =

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Evaluate the expressions when m = 3. a. (1 + m²) Substitute. Evaluate power. b. m³ – 6 ÷ 6 Substitute. Evaluate power. Divide. (1 + 3²) 3³ – 6 ÷ 6 (1 + 9) 10 Add within parentheses. 27 – 6 ÷ 6 Subtract. 27 – 1 26

Divide. Evaluate power – 3 = – – 3 = 3 2 – – 3 = 6 – 3 Multiply. Multiply and divide from left to right. STEP 3 Evaluate the expression – There are no grouping symbols, so go to Step 2. STEP 1 Evaluate powers. STEP 2 STEP 4 Add and subtract from left to right. 6 – 3 = 3 Subtract. ANSWER The value of the expression – 3 is 3.

= 2[9] Evaluate the expression. a. 7(13 – 8) = = 35 Subtract within parentheses. Multiply. b.b. Rewrite fraction as division. Evaluate within parentheses. Divide. c. 2[30 – (8 + 13)] = Add within parentheses. Subtract within brackets. = 18 Multiply. 7(5) 2[30 – 21]

Evaluate the expression when x = 4. 9x 3(x + 2) Substitute 4 for x. Add within parentheses = Multiply. =2 Divide. = 9 4 3(4 + 2) =

24 Text p. 19, #10-36 even Homework NJASK7 Prep