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Which description most accurately describes the motions for the calculation [tex]$-3 - 8$[/tex]?

A. Face right, move backward 3; Face left, move backward 8
B. Face left, move forward 3; Face left, move forward 8
C. Face left, move forward 3; Face left, move backward 8
D. Face left, move backward 3; Face left, move backward 8



Answer :

GinnyAnswer
Let's break down the problem step by step:

We need to find the result of the calculation [tex]\( -3 - 8 \)[/tex] and describe the associated motions based on the given directions.

1. Understand the initial value and operations:
- We start at an initial position, let's assume this is 0 for simplicity.
- The first operation is [tex]\( -3 \)[/tex]. This means you move 3 units backward from your starting position.
- The next operation is [tex]\( -8 \)[/tex]. This implies moving another 8 units backward from where you ended up after the first operation.

2. Calculating the final position:
- Starting at position 0.
- Move backward 3 units: initial position ([tex]\(0\)[/tex]) minus 3 gives [tex]\(0 - 3 = -3\)[/tex].
- From [tex]\( -3 \)[/tex], move backward 8 more units: ending position ([tex]\(-3\)[/tex]) minus 8 gives [tex]\( -3 - 8 = -11\)[/tex].

3. Describing the motions accurately based on the result:
- For the first move [tex]\( -3 \)[/tex]: You face left and move backward 3 units.
- For the second move [tex]\( -8 \)[/tex]: You face left again and move backward 8 units.

Thus, the most accurate description for the motions corresponding to the calculation [tex]\( -3 - 8 \)[/tex] is:

(1) Face left, move backward 3
(2) Face left, move backward 8

This matches the final result and accurately describes each step of the movements.

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