Is 416.60 an integer?

No, it is not.

Step-by-step explanation:

 In order to solve this exercise it is important to remember the definition of  "Integers".

Integers are defined as those numbers that do not have a fractional part. Integers contains:

1. The positive numbers (these are the numbers greater than zero):

 2. The negative numbers (these are the numbers less than zero):

 3. The zero:

It is also necessary to remember the definition of "Decimal numbers".

Decimal numbers are those numbers that have a whole part, a fractional part and a point that separates these parts. That point is called "Decimal point".

Then, given the following number:

You can identify that it has a whole part and a fractional part separated by the Decimal point. Therefore, that number it is not an Integer.

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

boxplot e is the answer