Answer:
Angle between the two vectors is 20.7718°.
Step-by-step explanation:
The given two vectors are x = (1,2,3,4) and y = (4,2,4,5)
Now the dot product between two vector is defined as
x.y = ║x║║y║cosθ
Now, x.y( dot product of x and y) = 1×4 + 2×2 + 3×4 + 4×5 = 40
║x║=
= 
║y║=
'
Thus, we get
40 =
×
×Cos θ
Thus, Cos θ = 
Cos θ = 0.935
θ = 
θ = 20.7718°
First u add the 98 and 71 together to get 169
now u take 169 and subtract 102 from it
the answer to that will be ur x value
6:00-30 minutes is 5:30
5:30-15 minutes is 5:15
5:15-45 minutes is 4:30
She started on 4:30 pm
Answer:
if it says n- -10 then its 10
if it says n-10 then its 30
Step-by-step explanation:
i dont know if that line is a negative
Answer:
true
Step-by-step explanation:
if they wash there hands the customers and employees can be safe