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3 years ago

What is the error in this problem

Mathematics

1 answer:

castortr0y [4]3 years ago

3 0

Answer:

12). LM = 37.1 units

13). c = 4.6 mi

Step-by-step explanation:

12). LM² = 23² + 20² - 2(23)(20)cos(119)°

LM² = 529 + 400 - 920cos(119)°

LM² = 929 - 920cos(119)°

LM = $\sqrt{929+446.03}$

= $\sqrt{1375.03}$

= 37.08

≈ 37.1 units

13). c² = 5.4² + 3.6² - 2(5.4)(3.6)cos(58)°

c² = 29.16 + 12.96 - 38.88cos(58)°

c² = 42.12 - 38.88cos(58)°

c = $\sqrt{42.12-20.603}$

c = $\sqrt{21.517}$

c = 4.6386

c ≈ 4.6 mi

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3 years ago

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