Find the Sum or Difference $$( 1 + 3 i ) - ( - 3 - 8 i ) + ( 9 - 9 i )$$

question 473

Multiple Choice

Find the sum or difference. Write the answer in standard form.
- $$( 1 + 3 i ) - ( - 3 - 8 i ) + ( 9 - 9 i )$$

• A) \(- 13 + 20 \mathrm { i }\)
• B) \(13 + 2 \mathrm { i }\)
• C) \(7 - 14 \mathrm { i }\)
• D) \(13 - 14 \mathrm { i }\)

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Definitions:

Equilibrium Quantity

The amount of products or services available that matches the amount desired at the market's equilibrium price.

Equilibrium Price

The price at which the quantity of a good or service supplied equals the quantity demanded in a market.

Chocolate-Covered Peanuts

A snack or confectionery consisting of peanuts that are coated in a layer of chocolate.

Surplus

A scenario where the supply of goods surpasses what is being demanded at the present price level.