A right circular cone has a radius of 2x + 1 and a height 3 units less than its radius. Express the volume of the cone as a polyno- mial function. The volume of a cone is V = 1/3tr2h for radius r and height h. Enter n as pi. ​

Fredrick designed an experiment in which he spun a spinner 20 times and recorded the results of each spin

Arianna is buying plants for her garden. she buys 15 flowering plants for $96. pink flowering plants sell for $8, and purple flowering plants sell for $5. how many pink flowering plants did arianna buy? i figured out the answer! the answer is 7. 8x +5y = 96 plug in 7 for x 8 (7) + 5y = 96 56 + 5y = 96 subtract 56 from both sides 5y/y = 40/5 y = 8 she bought 7 pink and 8 purple plants

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable