Kim is solving the following linear equation. 11 + 3x – 7 = 6x + 5 – 3x
Her final two steps are:
4 + 3x = 3x + 5
4 = 5
What can you conclude from the result Kim got?
А
The equaion has two answers, 4 and 5.
B
The equation has no solutions since 4=5 is a false statement
С
There are infinitely many solutions because there is no x in the final equation
D
The equation has infinite solutions, 4 and 5 are just two of them.

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

show da graph

step-by-step explanation: