Answer:
Step-by-step explanation:
we have to find the dot product here.
From the formula of dot product of vectors,
we know-
if X=<a,b,c> and Y=<d,e,f>
Then dot product of X and Y is-
X.Y=ad+be+cf
Here, we get
v=<2 , -8 , -8>
and w=<-2 , 6 , -5>
So, the dot product is-
v . w=2(-2)+(-8)(6)+(-8)(-5)
=-4-48+40
=-52+40
=-12
So,
v . w= -12
Answer:
188
Step-by-step explanation:
because you will use cross multiply hours over money
1/12 and 24/m cross multiply 12x24=188
188/1= 188
1. subtract y from both sides 3y-4=y+10
. -3 -3
2.now you have -4=-2y+10 subtract 10 to both sides
-10 -10
3. you have -14=-2y divide
4. y=7
You draw a diagram of the fence post and then you use the measurements to find the length of the chain using the pythagorean theorem. The answer is
or 14.8
