TheBlue2897 TheBlue2897
  • 13-03-2020
  • Mathematics
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Find the value of x to the nearest tenth.

Find the value of x to the nearest tenth class=

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marcthemathtutor
marcthemathtutor marcthemathtutor
  • 13-03-2020

Answer:

x = 9.4

Step-by-step explanation:

(see attached for reference on cosine rule)

by cosine rule

x² = 8² + 15² - 2(8)(15) cos 33°

x² = 64 + 225 - 201.281

x² = 87.719

x = √87.719

x = 9.366

x = 9.4 (nearest tenth)

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