Question 1 (1 point) [06.01]
How are physical and chemical changes similar? (1 point)
a
Neither can change the number of atoms of each element that are present.
b
Neither can cause chemical bonds to break.
с
Neither can result in a phase change.
d
Neither can cause a substance to give off heat or light.
Question 201

the answer is b, have negligible mass

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 .

+15-35=-20

going in opposite directions