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The number line shows the distance in meters of two skydivers, A and B, from a third skydiver located at point X:

A horizontal number line extends from negative 3 to positive 3. The point labeled as A is at negative 2.5, the point 0 is labeled as X, and the point labeled B is at 0.5.

Write an expression using subtraction to find the distance between skydivers A and B. (5 points)

Show your work and solve for the distance using additive inverses. (5 points)

Sagot :

Answer:

B ≥ 0.5  - A ≤ -2.5 = -3  is    ( 0.5x ) - ( -2.5x) = -3x

Step-by-step explanation:

A and B = 2 skydiver's distance each from x  =  -2.5  and 0.5   inequality shows us when x = 0 then A ≤ -2.5   The second inequality shows us when x = 0 then B ≥ 0.5 here on number line we an keep closed circles and shaded lines in opposite direction each from 0 showing domain is  x domain  = -2.5 to 0    and  x domain = 0 to 5  (using commas instead of to)  The actual expression then goes  B ≥ 0.5  - A ≤ -2.5 = -3 so we an just use   ( 0.5x ) - ( -2.5x) = -3x

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