What is used to show that an assumption is false? a. inductive reasoning b. counterexample c. pattern d. conjecture

It's b.

Step-by-step explanation:

That would be a counterexample.

For example we might conjecture that all numbers of the form n^2 - n + 41 are prime numbers. This is false because of the counterexample if n = 41 then 41^2 - 41 + 41 is divisible by 41.

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

h= 12 inches

step-by-step explanation: