Which are mixtures? check all that apply. copper sulfate
powdered sulfur and copper filings
iron oxide
cranberry juice
air
sugar
beryllium

Mixtures are defined as a substance composed of different substances that are not chemically bonded or combined.

Examples of mixtures are powdered sulfur and copper filings, air, and cranberry juice.

The properties of mixtures are:

1. The components or constituents of the mixture retain their physical properties.

2. The components of the mixture can be separated using some techniques.

3. The proportion of the components in the mixture is not fixed and can vary.

Thus, the mixtures are cranberry juice, powdered sulfur and copper filings, and air.

To know more about mixtures, refer to the following link:

link

complete the square on the right side of the equation;

-5(x + 0)^2 + 15

answer: d. y = -x^2 + 15

cell regulation is conducted by special proteins.