1. (Cefet-R.) A estaçäo espacial Mir permaneceuern órbita por 15 anos e deu cerca de 86500 voltas em tomo da Terra, durante otempo ern que esteve no espaç. A pernanência mais longa de um as- tronauta na Mir foi de, aproximadamente, 3 ancs. a) Ouantas voltas este astronauta deu ao redor da Terra?

Divide the following expression. \( \begin{array}{l}\frac{2 x^{3}-6 x^{2}+12 x}{2 x} \\ x^{2}-6 x+6 \\ x^{2}-3 x+6 \\ x^{2}-3 x+12 \\ x^{2}-6 x+12\end{array} \)

If \( \$ 5,500 \) is invested at \( 9 \% \) annual interest, which is compounded continuously, what is the account balance after 10 years, assuming no additional deposits or withdrawals are made? a.) \( \$ 12,298.02 \) b.) \( \$ 15,987.42 \) c.) \( \$ 13,527.82 \) d.) \( \$ 14,757.62 \)

3. Через середину D стороны AB треугольника ABC проведена прямая, параллельная AC и пересекающая сторону BC в точке Е. Найти BC , если \( \mathrm{BE}=8 \) см.

1. \( \mathrm{H}_{2} \mathrm{SO}_{4}+\mathrm{NaOU} \rightarrow \)

For the quadratic equation \( 2 x^{2}-4 x+5=0 \), find the value of the discriminant to determine if the equation has a real or non-real colution. a.) \( \sqrt{-36} \); non-real solution b.) \( \sqrt{36} \); real solution c.) \( \sqrt{24} \); real solution d.) \( \sqrt{-24} \); non-real solution