Observe o sistema de equações abaixo. {m − 3n = 16 {m + 5n= −8​ Quais são os valores de "m" e "n" que satisfazem esse sistema de equações? m = 1 e n = 3. m = 7 e n = -3. m = 52 e n = -12. m = -20 e n = -12.

You were told that the amount of time lapsed between consecutive trades on the new york stock exchange followed a normal distribution with a mean of 15 seconds. you were also told that the probability that the time lapsed between two consecutive trades to fall between 16 to 17 seconds was 13%. the probability that the time lapsed between two consecutive trades would fall below 13 seconds was 7%. what is the probability that the time lapsed between two consecutive trades will be between 14 and 15 seconds?

Which expression is equivalent to (4 +6i)^2? ? -20 + 48i 8 + 12i 16 - 36i 20 + 48i

Sum of the interior angles of a pentagon