Question

did you know the universe is not just made up of atoms? in fact, atoms make up the smallest portion of the universes composition. only 4.6% of the universe is composed of matter in the form of atoms! cold dark matter makes up 24% of the universe. it is likely that this is a type of sub - atomic particles that interact very weakly with ordinary matter. experiments in particle accelerators, like the large hadron collider, are looking for cold dark matter. the remaining 71.4% of the universe is in the form of dark energy. scientists do not know what dark energy is yet, but it seems to be responsible for the increasingly fast expansion of the universe. create a well - labelled pie graph using the percentages for atoms, cold dark matter and dark energy to show the composition of the universe. recall, you can determine the number of degrees each category occupies by first writing each percent as a decimal, then multiplying the decimal number by 360 degrees.

Explanation:

Step1: Convert percentage of atoms to decimal and find degrees

The percentage of atoms is 4.6%. As a decimal, it is 0.046. Multiply by 360 degrees.
$0.046\times360 = 16.56$ degrees

Step2: Convert percentage of cold dark matter to decimal and find degrees

The percentage of cold - dark matter is 24%. As a decimal, it is 0.24. Multiply by 360 degrees.
$0.24\times360=86.4$ degrees

Step3: Convert percentage of dark energy to decimal and find degrees

The percentage of dark energy is 71.4%. As a decimal, it is 0.714. Multiply by 360 degrees.
$0.714\times360 = 257.04$ degrees

To create the pie - graph:

• Label one sector "Atoms" with a central angle of approximately 16.56 degrees.
• Label another sector "Cold Dark Matter" with a central angle of approximately 86.4 degrees.
• Label the remaining sector "Dark Energy" with a central angle of approximately 257.04 degrees.

Answer:

Atoms: 16.56 degrees, Cold Dark Matter: 86.4 degrees, Dark Energy: 257.04 degrees for the pie - graph sectors.