The volume of a cone is 88π cubic feet. its height is 8 feet. fatima is finding the radius of the cone. her work is shown below. step 1: 88π = 1/3 πr² (8) step 2: 88π = 8/3 πr² step 3: 8/3 (88) = r² step 4: 234.7 = r² step 5: 15.3 =r what is fatima's error? - in step 4, fatima did not find the correct value of 8/3 (88). - in step 2, fatima should not have multiplied 1/3 and 8. - in step 3, fatima did not multiply 88 by the reciprocal of 8/3 - in step 1, fatima did not substitute the correct value for the height in the formula.

The sales tax rate is 7.25%. how much tax in dollars is added on an item that costs $56.00? a. $4.06 b. $7.25 c. $14.50 d. $60.06

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)

Ian is in training for a national hot dog eating contest on the 4th of july. on his first day of training, he eats 4 hot dogs. each day, he plans to eat 110% of the number of hot dogs he ate the previous day. write an explicit formula that could be used to find the number of hot dogs ian will eat on any particular day.