Hello :
v . w = <span>| | v | | × </span><span>| | w | | cos(</span><span>θ) ....(1)
v(2,0,1) w(0,1,-3)
</span>v . w = (2)(0)+(0)(1)+(1)(-3) = - 3
| | v | | = √((2)²+(0)²+(1)²) = <span>√5
</span>| | w | = √((0)²+(1)²+(-3)²) = √10
by (1) :
cos(θ) = (v . w ) / | | v | | × | | w | |
cos(θ) = = - 3/√50
θ =..... calculate by 2ind function ( calculator)
I think it’s B because it’s in the right for mate
Answer:
The next number is going to be 21
Answer: D. y = x^2
Step-by-step explanation:
Linear functions are functions in which the power of the unknown variable is 1 , that is the other of the unknown variable will be 1
A. y = x
This is a linear function because both x and y has 1 has their power
B. y = 2x
This is also linear
C. y = x + 2
This is also linear
D. y = x^2
This is not linear , although the power of y is 1 but the power of x is 2 , for it to be linear , the highest power of the unknown must be 1
