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Scrat [10]
2 years ago
15

A bookcase contains these books.

Mathematics
1 answer:
enyata [817]2 years ago
8 0
36 cook books because one book is selected at random from the bookcase
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Find the value of x. Round to the nearest tenth.
STALIN [3.7K]

Answer:

x = 10.2

Step-by-step explanation:

To find x, use Cosine

Cosine = \frac{adjacent}{hypothenuse}

⇒ Cosine 22 = \frac{x}{11}

Cosine of 22 is 0.93

⇒ 0.93 =  \frac{x}{11}

Multiply 11 on both sides:

⇒ 0.93 x 11 = \frac{x}{11} x 11

⇒ 10.23

Round to the nearest tenth:

10.23 ⇒ 10.2

x = 10.2

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