What is the measure of the vertex angle of an isosceles triangle if the measure of one of its base angles is 56

A 112
B 62
C 68
D124

Find the gradient of f(x, y,z)equals=left parenthesis x squared plus y squared plus z squared right parenthesis superscript negative 1 divided by 2 baseline plus ln left parenthesis x right parenthesis x2+y2+z2−1/2+ln(xyz) at the point left parenthesis negative 2 comma 1 comma negative 2 right parenthesis(−2,1,−2).

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

The probability that a student graduating from suburban state university has student loans to pay off after graduation is .60. if two students are randomly selected from this university, what is the probability that neither of them has student loans to pay off after graduation?