Consider the surface with parametric equations r(s, t)=⟨st, s+t, s−t⟩. A) Find the equation of the tangent plane at (2,3,1). . B) Find the surface area under the restriction s2+t2≤1

How do you create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1?

Plot the intercepts to graph the equation

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap