Use a Calculator to Find the Approximate Value $19.2$ A) $- 87.02 ^ { \circ }$

question 478

Multiple Choice

Use a calculator to find the approximate value. Express your answer in degrees rounded to two decimal places.
-arctan $19.2$

• A) \(- 87.02 ^ { \circ }\)
• B) \(65.26 ^ { \circ }\)
• C) \(87.02 ^ { \circ }\)
• D) \(43.51 ^ { \circ }\)

---

Definitions:

Halite

Also known as rock salt, it is a mineral composed primarily of sodium chloride and forms through the evaporation of saline waters.

Water Molecule

A chemical entity consisting of one oxygen and two hydrogen atoms, connected by covalent bonds, essential for most forms of life.

Electronegativity

A measure of an atom's ability to attract and hold electrons within a chemical bond.

Cations

Positively charged atoms.