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Vlad1618 [11]
3 years ago
10

Please help me solve this !!

Mathematics
2 answers:
Annette [7]3 years ago
7 0
I believe the answer is 6.68 so option b :)
mixas84 [53]3 years ago
5 0

Answer:

B) 6.68

Step-by-step explanation:

Use Cosine.

Cosine= Adjacent ÷ Hypotenuse

In this case the base you want to find is adjacent to the angle, 42°. Hence,

Cos (42)= adjacent ÷ hypotenuse

Cos (42) = x ÷ 9

x = Cos (42) × 9. Input that into your calculator.

x= 6.68

To remember the trigonometric ratios/formulas

Use the acronym, SOHCAHTOA

Hope this helps!!!!

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