Mathematics, 20.09.2020 04:01 malaysiasc93
Rewrite 7 − 8 using the additive inverse and display the new expression on a number line. 7 + (−8) A horizontal number line is shown with labels from negative 8 to positive 8. A blue arrow begins at 0 and ends at 7. A red arrow begins at 7 and ends at negative 1. 7 + 8 A horizontal number line is shown with labels from 0 to 16. A blue arrow begins at 0 and ends at 7. Another blue arrow begins at 7 and ends at 15. 7 − (−8) A horizontal number line is shown with labels from 0 to 16. A blue arrow begins at 0 and ends at 7. Another blue arrow begins at 7 and ends at 15. 8 − 7 A horizontal number line is shown with labels from negative 8 to positive 8. A blue arrow begins at 0 and ends at 8. A red arrow begins at 8 and ends at 1. Question 3(Multiple Choice Worth 5 points) What number should be added to 77 to make the sum 0? 77 –77 0 –76 Question 4(Multiple Choice Worth 5 points) Use absolute value to express the distance between −13 and 17 on the number line. |−13 − 17| = −30 |−13 − 17| = 30 |−13 − 17| = −4 |−13 − 17| = 4 Question 5 (Essay Worth 5 points) Determine the answer to 3 + (−5) and explain the steps using a number line. Question 6 (Essay Worth 5 points) Andrew is showing his work in simplifying −4.5 + 4.2 + 5.6 − 7.3. Identify any errors in his work or in his reasoning. Write feedback to Andrew explaining the mistake he made and how to correct his work. Step Work Reasoning −4.5 + 4.2 + 5.6 − 7.3 Original problem 1 −4.5 + 4.2 + 5.6 + (−7.3) Additive inverse 2 −4.5 + (−7.3) + 4.2 + 5.6 Commutative property 3 (−4.5 + (−7.3)) + (4.2 + 5.6) Associative property 4 −11.8 + 9.8 Simplify 5 −21.6 Simplify You must check the box below prior to submitting your exam! Check this box to indicate you are ready to submit your exam Explorer Toolbox Workload My Folders Current course: 4027 FDK341.10
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Rewrite 7 − 8 using the additive inverse and display the new expression on a number line. 7 + (−8) A...
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