In golf, scores that are under the expected score are represented
by negative numbers. calvin played three games of golf during
a tournament. his score for each game is shown in the table.

part a
which statement is true about calvin's score during the tournament?

a
calvin's score changed from game 1 to game 2 by -2.

b
calvin's score changed from game 1 to game 3 by -1.

c
calvin's score changed from game 2 to game 3 by -1.

d
calvin's score changed from game 1 to game 3 by-3.

part b
what was calvin's total score for the three games?

show your work.

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

idk

step-by-step explanation:

3/5

step-by-step explanation:

double number line is not a standard concept, so it must have been defined in your textbook. assume top line is numerator.