Find an equation for the tangent plane and parametric equations for the normal line to the surface z=xe^(-y) at point p(1,0,1)

What is the volume of this square pyramid?

Find three consecutive numbers such that the sum of one-fourth the first and one-fifth the second is five less than one-seventh the third

Amayoral candidate would like to know her residents’ views on a tax on sugar drinks before the mayoral debates. she asks one thousand registered voters from both parties. these voters are an example of a census population convenience sample simple random sample