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3 years ago

Sin (x)= 0.78 what is x?

2 answers:

7 0

The angle whose sin is 0.78 is either 51.26 degrees or 128.74 degrees.
(rounded)

There's no simple way to calculate this. You just have to look it up in a book
or punch it into your calculator.

aalyn [17]3 years ago

3 0

Sin (x)=0.78

x= $sin^{-1} (0.78)$

x= 51.26° or 180°- 51.26°= 128.74°

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2 years ago

Read 2 more answers

The first term of an arithmetic sequence is -3 and the fifteenth term is 53 what is the common difference of the sequence

saul85 [17]

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3 years ago

Square root of 648.7209 by division method

SpyIntel [72]

Answer:

$25.47$

Step-by-step explanation:

This root can be rewritten as:

$\sqrt{\frac{6487209}{10000} }$

$\sqrt{\frac{6487209}{100^{2}} }$

$\frac{1}{100}\cdot \sqrt{6487209}$

Since 6487209 is a multple of 3, the expression can be rearranged as follows:

$\frac{1}{100}\cdot \sqrt{3\times 2162403}$

2162403 is also a multiple of 3, then:

$\frac{1}{100}\cdot \sqrt{3^{2}\times 720801}$

$\frac{3}{100}\cdot \sqrt{720801}$

720801 is a multiple of 3, then:

$\frac{3}{100}\cdot \sqrt{3\times 240267}$

240267 is a multiple of 3, then:

$\frac{3}{100}\times \sqrt{3^{2}\times 80089}$

$\frac{9}{100}\cdot \sqrt{80089}$

80089 is a multiple of 283, then:

$\frac{9}{100}\cdot \sqrt{283^{2}}$

$\frac{9\times 283}{100}$

$\frac{2547}{100}$

$25.47$

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3 years ago