Answer: option b
Step-by-step explanation:
Answer:
![\displaystyle y = 45](https://tex.z-dn.net/?f=%5Cdisplaystyle%20y%20%3D%2045)
General Formulas and Concepts:
<u>Calculus</u>
Limits
Limit Rule [Variable Direct Substitution]: ![\displaystyle \lim_{x \to c} x = c](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5Clim_%7Bx%20%5Cto%20c%7D%20x%20%3D%20c)
Step-by-step explanation:
<u>Step 1: Define</u>
<em>Identify.</em>
<em />![\displaystyle y = \lim_{x \to -2} \big[ -3x^3 + 2x^2 - 4x + 5]](https://tex.z-dn.net/?f=%5Cdisplaystyle%20y%20%3D%20%20%5Clim_%7Bx%20%5Cto%20-2%7D%20%5Cbig%5B%20-3x%5E3%20%2B%202x%5E2%20-%204x%20%2B%205%5D)
<u>Step 2: Find Limit</u>
- [Limit] Limit Rule [Variable Direct Substitution]:
![\displaystyle y = -3(-2)^3 + 2(-2)^2 - 4(-2) + 5](https://tex.z-dn.net/?f=%5Cdisplaystyle%20y%20%3D%20%20-3%28-2%29%5E3%20%2B%202%28-2%29%5E2%20-%204%28-2%29%20%2B%205)
- Evaluate:
![\displaystyle y = 45](https://tex.z-dn.net/?f=%5Cdisplaystyle%20y%20%3D%2045)
∴ the limit as <em>x</em> approaches -2 of the given function -3x³ + 2x² - 4x + 5 is equal to 45.
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Learn more about limits: brainly.com/question/26091024
Learn more about calculus: brainly.com/question/26752465
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Topic: AP Calculus AB/BC (Calculus I/I + II)
Unit: Limits
X/31=55/100 31×55=1705 1705÷100= 17.05 so x=$17.05
Company A: y=20x+40
Company B: y=25x+20