En un barco donde viajaban 100 personas ocurre un naufragio. De los sobrevivientes se observa que la onceava parte son niños y la quinta parte de los muertos eran casados. ¿Cuántas personas murieron? (Teoría de la divisibilidad)

Which sum or difference identity would you use to verify that cos (180° - q) = -cos q? a.) sin (a -b) = sin a cos b – cos a sin b b.) cos (a -b) = cos a cos b – sin a sin b c.) cos (a -b) = cos a cosb + sin a sin b d.) sin (a + b) = sin a cos b + cos a sin b

Question 4 of 102 pointsjuliana had $96, which is eight times as much money as al had. how mucmoney did al have? select the correct solution method below, representingals money with x.

Cos^2x+cos^2(120°+x)+cos^2(120°-x)i need this asap. pls me