A number decreased by 19,
divided by -6, is no more than 5.'
ality:

shu t u

Step-by-step explanation:

Fifteen less than twice a number35% of n4/17 of nSubtract y from 5Subtract 5 from yadd|sumof x and|to 8x added to 3x subtracted from 20p added to tp subtracted from tmultiply x and 825 divided by a numberquotient of ten and a number decreased by twothe sum of 4 and a number divided by 104 times a number plus 5 times the same numbert is atleast 10 and at most 22divide 8 by xdivide x by 93 groups of wx is no less than 25The product of w and 5 is less than 21w more than 47 times the sum of x and ytake away 4 from 3 times dtwice the sum of a number and 3

dwe

step-by-step explanation:

ewd

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