which following statements are false
a) vertical angles are congruent
b) angles with measures between 0- 90 degrees are complementary
c) strain angles are complementary
d) angles with measure between 90 and 180 degrees are obtusei really need the answer asap plz

Two language majors, anna and megan, took exams in two languages. anna scored 85 on both exams. megan scored 74 on the first exam and 85 on the second exam. overall, student scores on the first exam had a mean of 82 and a standard deviation of 4, and the second exam scores had a mean of 71 and a standard deviation of 13. a) to qualify for language honors, a major must maintain at least an 85 average across all language courses taken. so far, which of anna and megan qualify? b) which student's overall performance was better?

In the equation sqrt(n+5)-sqrt(11-10)=1. what is the value of n

V=x^4-y^4 pick three expressions that can represent the three dimensions of the prism (each in meters)