Which is an example of a scientist using a mathematical model to describe the weather? A. The scientist finds an equation that predicts how long a rainstorm will last.

B. The scientist says that a lightning bolt is like a long snake.

C. The scientist uses cotton balls to represent clouds, and grass to represent the ground.

D. The scientist thinks of a cloud as a giant ball of cotton candy.

(its A)

coil wire, increase current, put iron inside the coil

3.2x10^7

small = small current large mag large current

we have been given a quadratic function and we need to restrict the domain such that it becomes a one to one function.

we know that vertex of this quadratic function occurs at (5,2).

further, we know that range of this function is .

if we restrict the domain of this function to either or , it will become one to one function.

let us know find its inverse.

upon interchanging x and y, we get:

let us now solve this function for y.

hence, the inverse function would be if we restrict the domain of original function to and the inverse function would be if we restrict the domain to .