Write the Word or Phrase That Best Completes Each Statement $$\begin{array} { l } x ^ { 2 } + y ^ { 2 } = 9 \\x - 9 y = 10\end{array}$$

question 186

Essay

Write the word or phrase that best completes each statement or answers the question.
Which method should be used to solve the system? Explain your answer, including a description of the first step.
- $$\begin{array} { l } x ^ { 2 } + y ^ { 2 } = 9 \\x - 9 y = 10\end{array}$$

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Definitions:

Raw Materials

The basic substances from which products are manufactured or made.

Vehicle Life Cycle Cost

The total cost associated with owning and operating a vehicle over its entire lifespan, including purchase price, maintenance, fuel, and disposal costs.

Operating Cost

The expenses associated with the day-to-day running of a business or system, including costs for materials, labor, and overhead.

Useful Life

The estimated period a fixed asset is expected to be usable for its intended purpose, affecting depreciation calculations.