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Yanka [14]
2 years ago
6

P = 3t² + 7t Work out the value of P when t = -4

Mathematics
1 answer:
Tanzania [10]2 years ago
8 0

Answer:

P = 20

Step-by-step explanation:

Hello!

We can solve this by substituting -4 for t.

<h3>Evaluate</h3>
  • P = 3t² + 7t
  • P = 3(-4²) + 7(-4)

<u>Remember that any negative number squared is the absolute value of that number squared.</u>

  • P = 3(|-16|)  - 28
  • P = 3(16) - 28
  • P = 48 - 28
  • P = 20

The final evaluation is 20.

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