Here are two fractions. 2/3 7/8
Which of these fractions has a value closer to 3/4?
You must show clearly how you get your answer.​

2/3

Step-by-step explanation:

2/3 is 0.67 and 0.67 is closer to 0.75 which is the 3/4

2/3

Step-by-step explanation:

3/4 = .75

2/3 = .66666667    --> .75 - .66666667 = .083

7/8 = .875   --> .875 - .75 = .125

.083 is less than .125 so 2/3 is closer

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

figure c

step-by-step explanation:

hope this .