Answer:
following are the solution to the given points:
Step-by-step explanation:
In point a:


calculating unit vector:

the point Q is at a distance h from P(6,6) Here, h=0.1

the value of Q= (5.92928 ,6.07071 )
In point b:
Calculating the directional derivative of
at P in the direction of 



In point C:
Computing the directional derivative using the partial derivatives of f.

Answer:
390 inches long
Step-by-step explanation:
The string = x


x = 390 inches
Answer:
Probability that she selects a blue bead
= 3/9
= 1/3
Step-by-step explanation:
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Answer:
y=45x+25
y = total cost and x = number of months.