1. consider the polynomial –4x + 7x^3 – 5x^2 + 10. a. what is the degree of the polynomial? explain. b. how many terms are in the polynomial? explain. c. what expression represents the polynomial written in standard form? explain.

Step-by-step explanation:

A

3 It's the highest power on any of the x values. 7x^3 contain's the highest power of 3.

B

The are 4 terms. Nothing can be combined with anything else because the powers are all different.

C

Just put the polynomial in order from highest power to lowest

7x^3 - 5x^2 - 4x + 10

The highest power is 3 and the lowest one is x^0 on the 10.

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

i don't see any

step-by-step explanation: