Question

Please help me with my homework!

A golfer played in a tournament. His scores are shown in the table.

Use the data set to select all true statements.

A. The sum of scores of all 4 days is +1.

B. The difference between scores from day 2 and day 4 is +4.

C. The difference between scores for day 1 and day 2 has an absolute value of 4.

D. The scores on day 1 and day 4 are additive inverses.

Answer 1

A, C, and D

Explanation:

A. Adding up all the numbers gives you a sum of +1 so this is correct.

B. Day 2 has a score of +3 and Day 4 has a score of +1. The difference between those two is +2, not +4 so this is incorrect.

C. Day 1 has a score of -1 and Day 2 has a score of +3. The difference between those two is +4. The absolute value of +4 is +4 so this is correct.

D. Day 1 has a score of -1 and Day 4 has a score of +1. An additive inverse is a value with an opposite sign. One is positive and the other is negative so this is correct.