The number of earrings sold at a jewelry store a. qualitative/nominal b. qualitative/ordinal c. quantitative/continuous d. quantitative/discrete

The number of earrings sold at a jewellery store

Since, it indicates number of earnings

It means that it is quantifying it

Because quality means preciousness of jewellery

and quantity means number

so, it is quantitative in nature

now, we know that

continuous can have decimals values

for example: 1.1 , 2.2, 2.7 etc are always be part of continuous value

but number earning can not be 1.1 , 2.2 , 2.7

It will always be natural numbers like-1 , 2, 3, 4, ...

so, it is discrete in nature

Hence , it is quantitative and discrete

so, option-DAnswer

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

1,589.63 in.^3

step-by-step explanation:

i hope this you : d