Answer:
They traveled 2.71 in 1 hr
Step-by-step explanation:
97.8 divided by 1.5 then multiply that by 1hr
X/4=160R2 X=642. I hope I helped you out. 160x4=640+2=642.
The diagonal of the square is 9.1?
Answer: 2/10
Step-by-step explanation:
Let
. The tangent plane to
at (1, 2, -6) has equation

We have

Then the tangent plane has equation

Let
, and
. The tangent plane to
at a point
is

We have

so that this plane has equation

In order for this plane to be parallel to the previous plane, we need to have

so the point we're looking for is (2, 6, -36).