A scientist is studying the growth of a particular species of planet. He writes the following equation to show the height of the plant f(n), in cm, after n days f(n)= 9(1.05)n
Part A. when the scientist concluded his study the height of the plant was approximately 11.24 cm. what is a reasonable domain to plot the growth function? Part B. what does the y intercept of the graph of the function f(n) represent? part C. what is the average rate of change of the function f(n) from n = 1 to n = 4 and what does it represent?

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?

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

Factor the polynomial 4x4 – 20x2 – 3x2 + 15 by grouping. what is the resulting expression? (4x2 + 3)(x2 – 5) (4x2 – 3)(x2 – 5) (4x2 – 5)(x2 + 3) (4x2 + 5)(x2 – 3)