Identify as a monomial, binomial, or trinomial.
3x+0y

You know that 0 times anything is 0.

So, 0y = 0.

3x + 0 = 3x

Monomial.

Monomial.

Step-by-step explanation:

We have been given an expression . We are asked to identify our given expression as monomial, binomial, or trinomial.

We can see that an expression with single term is known as monomial, expression with two terms is known as binomial and expression with 3 three terms is known as trinomial.

Upon looking at our given expression, we can see that our expression has two terms. But we need to be careful as in 2nd term y is being multiplied by 0, which will result as 0.

Therefore, our given expression is monomial.

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