parischick05 parischick05

27-05-2021
Mathematics

contestada

Find x. Round to the nearest tenth

A: 5.0
B: 7.8
C: 3.9
D: 4.6

Find x Round to the nearest tenth A 50 B 78 C 39 D 46 class=

Respuesta :

jimrgrant1 jimrgrant1

27-05-2021

Answer:

D

Step-by-step explanation:

Using the cosine ratio in the right triangle

cos40° = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{x}{6}[/tex] ( multiply both sides by 6 )

6 × cos40° = x , then

x ≈ 4.6 ( to 1 dec. place ) → D

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