Answer:
47.67
Step-by-step explanation:
210/360×2×22/7×13
=47.67
That is about coordinates and the dot product
we have a has coordinates (4;8)
and b has coordinates (-2;3)
So we have a.b= 4x(-2)+ 8x3= -8+24=16
The answer is 16
Answer:
t=4.45
Step-by-step explanation:
First we have to find derivative of f(x):

For x=2 we have:

Now, 
Hence, the answer is A) 2