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8 December, 05:04

What is the value of the expression x + (-y) when x = - 3.8 and y = 1.7?

a. - 5.5

b. - 2.1

c. 2.1

d. 5.5

A deep sea diver's depth is currently 30 m below the surface of the water.

Which expressions represent a change in depth of d meters?

Choose exactly two answers that are correct.

a. B.

c. D.

...

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Answers (1)
  1. 8 December, 05:16
    0
    The solution is just to substitute each value if x and y and calculate it.
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