A frustum (truncated cone), and the formula for determining its volume, is shown below. The radius (r) of the frustum’s upper base is 9 feet. The radius (R) of the frustum’s lower base is 15 feet. The height of the frustum is 8 feet and the slant height of the frustum is 10 feet. What is the volume of the frustum? (Note: A common mistake for this solid is to call it a “frustrum”; however, the correct term is “frustum”.)

Pepe and leo deposits money into their savings account at the end of the month the table shows the account balances. if there pattern of savings continue and neither earns interest nor withdraw any of the money , how will the balance compare after a very long time ?

Which expression is equivalent to -5(3x - 6/7)

If your score on your next statistics test is converted to a z score, which of these z scores would you prefer: minus2.00, minus1.00, 0, 1.00, 2.00? why? a. the z score of 2.00 is most preferable because it is 2.00 standard deviations above the mean and would correspond to the highest of the five different possible test scores. b. the z score of 0 is most preferable because it corresponds to a test score equal to the mean. c. the z score of minus2.00 is most preferable because it is 2.00 standard deviations below the mean and would correspond to the highest of the five different possible test scores. d. the z score of minus1.00 is most preferable because it is 1.00 standard deviation below the mean and would correspond to an above average