Two petri dishes were on the desktop in Dr. McFarlan's lab. Dish A had cells with a radius of 4.5 × 10-14 cm. Dish B had cells that had a radius of 3.4 × 10-12 cm. What is the sum of the radii of the two types of cells, using scientific notation? A. 34.45 × 10-15 cm B. 3.445 × 10-16 cm C. 3.445 × 10-12 cm

The jones farm has 24 cows that each produce 52 quarts of milk a day. how many quarts are produced each day altogether

At the olympic games, many events have several rounds of competition. one of these events is the men's 100-meter backstroke. the upper dot plot shows the times (in seconds) of the top 8 finishers in the final round of the 2012 olympics. the lower dot plot shows the times of the same 8 swimmers, but in the semifinal round. which pieces of information can be gathered from these dot plots? (remember that lower swim times are faster.) choose all answers that apply: a: the swimmers had faster times on average in the final round. b: the times in the final round vary noticeably more than the times in the semifinal round. c: none of the above.

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base