There are 20 students enrolled in a history class. Eight of the students are female. Of the females in this class, 3 of them are wearing blue shirts. What is the probability that a randomly chosen student will be a female not wearing a blue shirt? A. 2/5

B. 1/4

C. 3/20

D. 1/32

Which of the following is the rational exponent expression of 6 root f

The average human heart beats 1.15 \cdot 10^51.15⋅10 5 1, point, 15, dot, 10, start superscript, 5, end superscript times per day. there are 3.65 \cdot 10^23.65⋅10 2 3, point, 65, dot, 10, start superscript, 2, end superscript days in one year.how many times does the heart beat in one year? write your answer in scientific notation, and round to one decimal place.

Find the value of x. give reasons to justify your solutions! c ∈ ae