Aclass of 24 students wants to choose 3 students at random to bring food for a class party. any set of 3 students should have an equal chance of being chosen. which of the following strategies will result in a fair decision? a. assign a number to each student. write the numbers on slips of paper and put them all in a hat. randomly choose three slips of paper. the students with those three number can bring the food. b. arrange the students in a line. start at one end and have each student flip a coin. the first three students to flip heads can bring the food. c. ask the students to volunteer. the first three students to raise their hands can bring the food. d. none of the above

walter needs to make at least 5 more cookies but no more than 40. 5 ≥ x ≥ 40;

step-by-step explanation:

walter has to make a minimum of 20 cookies. he already has 15 cookies made, so he must make 5 more to meet the minimum.

the maximum amount of cookies he can make is 55. he already has 15, so he has to make no more than 40 more cookies to meet the maximum.

answer: the answer is (b) amie should have multiplied

step-by-step explanation: given a sphere and a cylinder with same radius and height.

let, 'r' be the radius of the cylinder and sphere and 'h' be the height of the cylinder. according to the question,

r = h.

now, the volume of the sphere will be

and the volume of the cylinder will be

therefore, we have

thus, ammie should have multiplied the volume of the sphere

step-by-step explanation: