danielroytman1 danielroytman1
  • 20-10-2018
  • Mathematics
contestada

Find the value of the expression: 70–a^2 for a=–25; 1; 10

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sqdancefan
sqdancefan sqdancefan
  • 20-10-2018

Answer:

  • a = -25: -555
  • a = 1: 69
  • a = 10: -30

Step-by-step explanation:

Put the value where "a" is in the expression and do the arithmetic.

  1. For a = -25: 70 - (-25)² = 70 - 625 = -555
  2. For a = 1: 70 - (1)² = 70 - 1 = 69
  3. For a = 10: 70 - (10)² = 70 - 100 = -30

_____

If you're unsure of your own arithmetic skills, you can always use a calculator.

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