En un hospital el número de nacimientos disminuyó un 4% en el año 2020 con respecto al año 2019. Si en el año 2020 nacieron 432 bebés, ¿Cuántos habían nacido en el 2019? Explica tu respuesta con un procedimiento porfa ayuda

the value of v.w= -12.

step-by-step explanation:

we are given three vector r,v and w as:

r = < 5, -5, -2> ; v = < 2, -8, -8> ; w = < -2, 6, -5>

we know that r,v and w could also be represented as:

r=5i-5j-2k

v=2i-8j-8k

and w= -2i+6j-5k

where i,j and k are the unit vectors of x,y and z-axis respectively.

also we know that it has the following property:

i.i=1 ; j.j=1; k.k=1

and i.=j.i=i.k=k.i=j.k=k.j=0

i.e. when we multiply two vectors or we find it's dot product we need to only multiply the components of x coordinates with each other; y with each other and z with each other.

hence, v.w= (2i-8j- -2i+6j-5k)

                  = 2×(-2)+(-8)×(6)+(-8)×(-5)

                  = -4-48+40

                  = -12

hence, v.w= -12

answer: the anser is 3

step-by-step explanation:

c- 2o is equal to 9

answer: 5100 just subtract

step-by-step explanation:

nope.   happens to me as well.

-aparri