I need the answers to these question (with steps)
1. Simplify
(5t^3)^-4

2. What is the order of 4 x 10^-7, 7 x 10^-9, 1 x 10^4,2 x 10^4

3. Simplify, give answer in scientific notation
(8 x 10^4)(9 x 10^-8)

thanks!

Step-by-step explanation:

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