Answer:
170°
Step-by-step explanation:
Let a be the distance from Los Angeles to Chicago = 1744 miles, b be the distance from Chicago to New York = 714 miles and c be the distance from New York to Los Angeles = 2451 miles.
A is the angle opposite to side a, B is the angle opposite to side b and C is the angle opposite to side c.
Therefore the angle at Chicago is C.
From cosine rule:
c² = a² + b² - 2ab × cos (C)
2ab × cos (C) = a² + b² - c²
cos (C) = (a² + b² - c²) / 2ab
Substituting:
cos (C) = (1744² + 714² - 2451²) / 2×1744×741
cos (C) = -0.986
C = cos⁻¹ (- 0.986) = 170°
Yes it is a function any single value of x has only one value of y
About 1.76 percent
I did the math myself
Answer:
The first choice
Step-by-step explanation:
The selling Price is S(x) = 100x^3 + 6x^2 + 97x + 215
<u>The cost = C(x) = 88x - 215</u>
The Profit = S(x) - C(x) = 100x^3 + 6x^2 + 9x
The answer is The First Choice
Answer:
I don't know man
Step-by-step explanation:
