Pls help 20 points what 3d object is generated by rotating the rectangle about the x-axis.

a. a cylinder. with a radius of 2 and height 4

b. a cone with a radius of 4 and height 2

c. a cone with radius2 and height 4

d. a cylinder. with a radius of 4 and height 2

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 constitution gives congress the power to create federal courts lower than the supreme court higher than the supreme court equal to the supreme court, unaffected by the supreme court.

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry