Nico dropped the brand new bottle of dog shampoo and 3 ounces spilled out. He measures 14
oun
ounces. Which is the correct
shampoos his dog and the bottle of shampoo originally contained 30-1
value of x, the number of times Nico can bathe his dog using this one bottle?
O 12x-3 - 302x- 22 times
o 1x
14x+3 - 302; x = 27 times
14x+3-30,
o 14x-3- 30-31 x - 27 times
X-22 times

22 times

Step-by-step explanation:

C

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

so, converting firstly the mixed fractions to improper fractions and then "adding".