Determine whether the statements are always, sometimes, or never true. if a statement is always true or always false, explain why. if it is sometimes true, give an example of when it is true and when it is not true.
(a) the square of a rational number is a rational number.
(b) the square of an irrational number is an irrational number.
(c) the square root of a rational number is a rational number.
(d) the square root of an irrational number is an irrational number.

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?

Daniel expanded the expression as shown below -2(-8x-4y+3/4)=-10x-8y-11/4 what errors did he make? check all that apply

What is the area of a triangle with a base of 7x and height of 8x expressed as a monomial? question 5 options: 1x 15x2 28x2 56x2