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miller_introductory_algebra_3e_ch1_3

Section 1.2 Exponents, Square Roots, and the Order of Operations 65 Calculator Connections Topic: Evaluating Exponential Expressions on a Calculator On a calculator, we enter exponents greater than the second power by using the key labeled or . For example, evaluate and : Scientific Calculator: Enter: 2 4 Result: 16 Enter: 10 6 Result: Graphing Calculator: Topic: Applying the Order of Operations on a Calculator Most calculators also have the capability to enter several operations at once. However, it is important to note that fraction bars and radicals require user-defined parentheses to ensure that the proper order of operations is followed. For example, evaluate the following expressions on a calculator: a. b. c. Scientific Calculator: Enter: 130 2 5 1 3 Result: Enter: 18 2 11 9 Result: Enter: 25 9 Result: Graphing Calculator: 2 8 Calculator Exercises Simplify the expression without the use of a calculator. Then enter the expression into the calculator to verify your answer. 2 110 512 12 4 91 100 215 323 84 4 6 8 3 1. 2. 3. 3 14 122 12 112 6 122 49 3 8 232 22 18 4. 5. 6. 20 32 1 27 26 22 118 2 4 4 3 3 323 7. 8. 9. 0.5 4 125 9 18 2 11 9 130 215 123 1000000 24 106


miller_introductory_algebra_3e_ch1_3
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