Solve for t \( e^{-0.43 \mathrm{t}}=0.29 \) Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. \( \mathrm{t}= \) (Type an integer or a decimal. Do not round until the final answer. Then round to three decimal places as needed. Use B. The solution is not a real number.

3. Uis tiene el triple de dinero de maria menos \( \$ 1,0000 \) si entre ambos tienen \( \$ 110,000 \) ¿Cuanto dinero tiene en tatal maria?

\( \left. \begin{array} { l } { c ^ { 2 } - a b = 22 } \\ { b ^ { 2 } - a c = - 103 } \\ { a ^ { 2 } - b c = ? } \end{array} \right. \)

sum of partial fractions. c. \( \frac{x^{2}-3}{x^{3}+x^{2}+x+1} \)

Which is equal to \( \frac{10}{2+i} ? \) A. \( 5-10 i \) B. \( 4-2 i \) C. \( 5+\frac{10}{i} \) D. \( 4+2 i \) E. \( 5+10 i \)

\( 4 x^{2}+k x+5=0 \) has roots whose difference is \( \frac{1}{4} \)