What is the minimum sample size needed to be 80% confident with a 3.9% margin of error?

Describe the possible echelon forms of the standard matrix for a linear transformation t where t: set of real numbers is onto.

Empty box + box + empty box fill in the box is equal to 30 how

*let m∠cob = 50°30’, m∠aob = 70° and m∠aoc = 20°30’. could point c be in the interior of ∠aob? why? a. point c could be the interior of aob but it is not the only case b. point c is the interior of aob c. point c is not the interior of aob d. the given is not possible for the plane geometry answer