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9966 [12]
3 years ago
13

Find the exact value of tan 2x if sin x = -4/5. (Quadrant III)

Mathematics
1 answer:
kondor19780726 [428]3 years ago
7 0

Answer:

sin x = -0.8

x = -53.13010235 (used inverse of sin)

tan 2x

tan -106.2602047

= 0.61854704132

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The claim that he rate of inaccurate orders is equal to​ 10% is supported by statistical evidnece at 5% level

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Given that in a study of the accuracy of fast food​ drive-through orders, one restaurant had 34 orders that were not accurate among 371 orders observed.

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Since p > 0.05 accept null hypothesis

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