It is A because the ratio is 2:3
Answer:
2/9
Step-by-step explanation:
Scale factor = 10/45 = 2/9
Answer:
Required equation of tangent plane is
.
Step-by-step explanation:
Given surface function is,
To find tangent plane at the point (5,-1,1).
We know equation of tangent plane at the point $(x_0,y_0,z_0)[/tex] is,

So that,



Substitute all these values in (1) we get,


Which is the required euation of tangent plane.
First one the answer is A; Alexander needs 70 ft