Answer:
4) r=7.421
Step-by-step explanation:
All the questions are the same steps but when it asks for the diameter (question 6 and 7) , you would do the same steps just multiply the radius by 2 at the end.
Hope that helped.
Option (A) is correct
The sale this year be $400000 .
I think it is 16.4 but I think
Answer:

Step-by-step explanation:
We are given that
Equation of curves


Both curves lie on S.
We have to find the equation of tangent plane at P(4,1,4).


Hence, t=0 and u then it satisfied the given point.
Substitute the values in the derivatives


The equation of tangent at point P(4,1,4) is given by




Answer:
a. 37
b. 420
c. 0.67
d. 4.6
Step-by-step explanation: