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How to do this question? I don't really know what the lines next to 2t are, or are they just brackets?

How to do this question? I don't really know what the lines next to 2t are, or are-example-1

1 Answer

3 votes

Answer:

- 14

Explanation:

the bars around 2t , indicate the absolute value of 2t

the absolute value function always gives a positive value , that is

| - a | = | a | = a

so for example

| - 4 | = | 4 | = 4

given


(2)/(3) p - | 2t | - s² ( substitute values for p, t and s into the expression )

=
(2)/(3) × 12 - | 2(- 3) | - (- 4)²

= 2 × 4 - | - 6 | - 16

= 8 - 6 - 16

= 2 - 16

= - 14

User Misha Slyusarev
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