Brock has 12 colored pencils, two each of red, green, blue, pink, purple, and black. He wants to determine the probability of taking out two green pencils.
Which of the following would be the most appropriate sampling technique?
OA. He could observe the number of green pencils in one pack of pencils.
ОВ.
He could spin a spinner with four of the six colors represented.
OC. He could roll two six-sided cubes.
OD. He could draw a bar graph.

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?

The trigonometric ratios sine and secant are reciprocals of each other

Awater holding tank measures 105 m long, 50 m wide, and 8 m deep. traces of mercury have been found in the tank, with a concen- tration of 60 mg/l. what is the total mass of mercury in the tank? answer in units of kg.