Answer:
a=3
Step-by-step explanation:
if you are solving for a
Answer:
67
Step-by-step explanation: Given the quadratic equation $z^2 + bz + c = 0$, Vieta's formulas tell us the sum of the roots is $-b$, and the product of the roots is $c$. Thus,
\[-b = (-7 + 2i) + (-7 - 2i) = -14,\]so $b = 14.$
Also,
\[c = (-7 + 2i)(-7 - 2i) = (-7)^2 - (2i)^2 = 49 + 4 = 53.\]Therefore, we have $b+c = \boxed{67}$.
There are many other solutions to this problem. You might have started with the factored form $(z - (-7 + 2i))(z - (-7 - 2i)),$ or even thought about the quadratic formula.
This is the aops answer :)
Answer:
- Peter is a compulsive gamer. He decides to buy World of Warcraft, all of its expansions, Starcraft 2, a PS3, a Wii, and an Xbox 360 since prices in general have been rising at an alarming rate. <u>INFLATION
</u>
- <u>
</u>Melissa decides to start her own personal library and chooses to amass a private collection of books and magazines about world religions, cooking, comics, and economics. As she reads an issue of The Economist, she discovers overall price levels have changed only 0.01% in the past 2 years and decides it doesn't matter whether she starts the project now or later. <u>PRICE STABILITY</u>
- Linda postpones her wedding even though most food prices and most service prices were dropping this year, which would help keep the cost of the wedding down. <u>DEFLATION</u>
<u>Linda's</u> money earned the most value because deflation means that the currency is gaining value as time passes. It is the opposite to inflation where a currency loses value as time passes.
Step-by-step explanation:
