Una estudiante lanza una caja con llaves verticalmente hacia arriba, a su hermana ubicada en una ventana de un club femenino, a 4 metros de altura sobre el nivel del piso. La hermana
atrapa la caja 1,5 segundos después de haber sido lanzado. ¿Cuál es la velocidad inicial- en m/s-
con que fue lanzada la caja de llaves? Considerar g= 10 m/s2.
a) 8,2
b) 9,2
c) 10,2
d) 11,2
e) 12,2​

Perform the indicated operation. 8/a - 6/a + 7/a

(least common multiples) the answer that i had in the 1st step was lcm of airline tickets sold=72. idk if that even matters but just in case. ! three co-workers are busy selling airline tickets over the phone. in an 8-hour day, charles can sell 8 airline tickets, ann can sell 9 airline tickets, and michelle can sell 6 airline tickets. step 2 of 2: what is the smallest number of 8-hour days needed for each of them to achieve the same number of sales? it takes charles . it takes . it takes .

Use the quadratic formula to solve the equation. if necessary, round to the nearest hundredth. x^2 - 20 = x a. 5, 4 b. -5, -4 c. -5, 4 d. 5, -4