\( Q \) representa la temperatura (en grados Celsius) en la casa de Quinn después de \( t \) minutos. \( Q=42-0.7 t \) ¿Cuál era la temperatura cuando Quinn llegó a casa? \( \square \) grados Celsius.

Find all solutions of the equation in the interval \( [0,2 \pi) \). \( 3 \tan ^{2} x-1=0 \) Write your answer in radians in terms of \( \pi \). If there is more than one solution, separate them with commas. EXPLANATION

g) \( 8 z^{4}+8 z^{3}-z-1=0 \), puis : \( 8 e^{4 z}+8 e^{3 z}-e^{z}-1=0 \)

solve each of the foll owing equation:- \( (4)^{x}=49 \)

Abner is a prosecutor acting as an advocate for the government in a case in which he is trying hard to secure a conviction. While arguing the case, Abner used false testimony and also failed to disclose exculpatory evidence at trial. Which of the following statements is true? Abner cannot be held liable for either action Abner can be held liable for using false testimony at trial Abner can be held liable for failing to disclose exculpatory evidence at Abner can be held liable for both of these actions

Simplify. \( \begin{array}{lll}\text { 10. }(8 i)-(3 i) & \text { 11. }(-2 i)^{2} & \text { 12. }(7+2 i)-(3-4 i) \\ \text { 13. }(-2+i)^{2} & \text { 14. }(3 i)(2 i)-(3+5 i) & \text { 15. }(-3+4 i)(9-6 i)\end{array} \)