Pax wants to make fruit punch for a party suing the recipe below

he will make three times the amount of fruit punch listed in the recipe what is the total amount of fruit punch in liters that packs will make?

D. 14,25

Step-by-step explanation:

I think your question is missed of key information, allow me to add in and hope it will fit the original one.  Please have a look at the attach photo.

Given:

He will make three times the amount of fruit punch listed in the RECIPE. so the the total amount of fruit punch in liters that packs will make is:

= 3 (Lits of Orange juice+ Lits of Cranbarry juice + Lits of Ginger ale)

= 3 (1,25 + 2,5 + 1)

= 14,25

We choose D.

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