# Kaitlyn Zirrith: 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. $$\pi L(1-\alpha)R^{2}=4\pi\sigma T^{4}R^{2}$$
5. $12\text{ km} \times \frac{0.6 \text{ miles}} {1 \text {km}} \approx 7.2 \text {mile}$
6. $$4, 173, 445, 346.50 \approx 4,200,000,000 = 4.2 \times 10^{9}$$
7. $50 \text {m} \times \frac {3.4 \times 10^{6} \text {kg}} {1 \text {sec}}\times \frac {10 \text {J}}{1 \text {kg} \cdot 1 \text {m}} = 1.7\text {GW}$
8. $$\5,000 \times(1 + 0.012)^{30} \approx \7, 150$$
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