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jekas [21]
2 years ago
15

In ΔBCD, the measure of ∠D=90°, the measure of ∠B=8°, and BC = 6.4 feet. Find the length of DB to the nearest tenth of a foot.

Mathematics
2 answers:
Tasya [4]2 years ago
8 0

Answer:

6.3 feet

Step-by-step explanation:

cosB= hypotenuse/adjacent = x/6.4

​cos8 = x/6.4

6.4 cos8= x

x= 6.3377 = 6.3 feet

kipiarov [429]2 years ago
6 0

Answer:

6.3

Step-by-step explanation:

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Answer:

E.  √180

Step-by-step explanation:

Using Pythagoras' theorem

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a^2 = c^2 - b^2

a^2 = 18^2 - 12^2

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a^2 = 180

a = √180

Answer

E.  √180

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Step-by-step explanation:

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3 years ago
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Volgvan
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1) 2

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5 0
3 years ago
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