Express the answers to the following calculations in scientific notation (a) 0.0095 + (8.5 x 10^-3) (b) 653 + (5.75 x 10^-8) (c) 850,000 – (9.0 x 10^5) (d) (3.6 x 10^-4) x (3.6 x 10^6) show work, you

Part (a)
0.0095 + 8.5 x 10⁻³
  = 9.5 x 10⁻³ + 8.5 x 10⁻³
  = (9.5 + 8.5) x 10⁻³ 
  = 18 x10⁻³
  = 1.8 x 10⁻²
1.8 x 10⁻²

Part (b)
653 + 5.75 x 10⁻⁸
  = 6.53 x 10² + (5.75 x 10⁻¹⁰) x 10²
  = (6.53 + 5.75 x 10⁻¹⁰) x 10²
  = 6.53 x 10²
6.53x 10²

Part (c)
850,000 - 9.0 x 10⁵
  = 8.5 x 10⁵ - 9.0 x 10⁵
  = - 0.5 x 10⁵
  = - 5.0 x 10⁴
-5.0 x 10⁴

Part (d)
(3.6 x 10⁻⁴) * (3.6 x 10⁶)
  = (3.6*3.6)*(10⁻⁴)*(10⁶)
  = 12.96 x 10⁶⁻⁴
  = 12.96 x 10²
  = 1.296 x 10³
1.296 x 10³

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