Erin Brennan- Math Quiz

  1. \(x^3-3x^2-10x=0\)
  2. \((1+r)^n\)
  3. \((5.7\times 10^{-8})\times (1.6\times 10^{12})= 9.12\times 10^{4}\)
  4. \(\pi L(1-\alpha)R^2= 4\pi\sigma T^4R^2\)
  5. \(12km\times \frac{0.6 mile}{1 km}\approx 7.2 mile\)
    \[12km\times \frac{0.6 mile}{1 km}\approx 7.2 mile\]
  6. \(4,173,445,346.50\approx 4,200,000,000= 4.2\times 10^{9}\)
  7. \[50 m\times (\frac{3.4\times 10^{6} kg } {1 sec})\times (\frac{10J}{1 kg\times 1m})= 1.7 GW\]
  8. \(\$5,000\times (1 + 0.012)^{30}\approx\$7,150\)
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