La probabilidad de que un estudiante obtenga el grado en farmacia es 0,3. hallar la probabilidad de que un grupo de 7 estudiantes matriculados en el primer curso finalice la carrera A) ninguno de los siete finalice la carrera.
B) Finalicen todos.
C) al menos dos acaben la carrera.
D) hallar la media y la desviación típica del número de alumnos que acaban la carrera.

81 seats

step-by-step explanation:

if you multiply 0.65 times 125 then you get 81.5 seats. well since you can't have half of a seat you have to round down and get 81 seats in the no children zones. that leave 44 seats outside of the no children zone.

typically if you want , you would actually put questions here for us to you. but hey, that's just me. maybe someone will magically answer the questions for you without knowing what they are.

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

the first one, all those points on the line just make a strait line.