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alex9473
07.07.2020 •
Mathematics
Sheila plans to row across the lake from point A to point B as shown below.
To determine how far she will have to row, she has chosen a point Cand
calculated the labeled data. How many miles will she have to row? Round
your answer to two decimal places.
12.3 miles
15.6 miles
66.7°
Solved
Show answers
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Ответ:
15.58 miles
Step-by-step explanation:
Given two sides and an included angle, segment AB can be calculated using the cosine rule :
Given a = 15.6 miles, b = 12.3 miles and C=α=66.7°
To find c:
c= √(a^2+b^2-2abcosα
c = √ 15.6^2 + 12.3^2 -(2 × 15.6 × 12.3)cos66.7°
c = √243.36 + 151.29 - 151.79454
c = √242.85545
c = 15.583820
c = 15.58 miles
Ответ:
Es bizantino
Explanation:
Puedes descubrirlo descubriendo que es el arte románico de la Europa medieval.