3 years ago

HELLO! HOW ARE THEY? I HOPE PERFECT. : D

Mathematics

1 answer:

faust18 [17]3 years ago

3 0

Answer:

00.75

Step-by-step explanation:

00.75 is the answer

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$\textsf {Each of the steps has been reasoned below :}$

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Elena L [17]

Answer:

i. <DCB = $53.13^{o}$

ii. Sin of <DCB = 0.8

Step-by-step explanation:

Let <DCB be represented by θ, so that;

Sin θ = $\frac{opposite}{hypotenuse}$

Thus from the given diagram, we have;

Sin θ = $\frac{4}{5}$

= 0.8

This implies that,

θ = $Sin^{-1}$ 0.8

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Therefore, <DCB = $53.13^{o}$ .

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