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worty [1.4K]
3 years ago
7

Use ΔDEF, shown below, to answer the question that follows: What is the value of x rounded to the nearest hundredth? Type the nu

meric answer only in the box below.

Mathematics
1 answer:
Contact [7]3 years ago
8 0

Answer:

x= 16.53

Step-by-step explanation:

Since this is a right triangle we can use the law of cosine (adjacent/hypotenuse) to solve. You get the equation cos(49)=x/55. You then wanna multiply 55 to both sides so you can isolate x. You get 55*cos(49)=x. Then, you put 55*cos(49) into a calculator and multiply to get 16.5325899059.... Then round to the nearest hundredth to get 16.53 as your answer.

Hope this helps :)   (its been a while since I've done trig ratios so thanks for the refresher)

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