3 years ago

Find the missing side. Round to the nearest tenth. A.7.4B.4.4C.6.4D.5.4

Mathematics

2 answers:

Nutka1998 [239]3 years ago

4 0

Answer:

option D

Step-by-step explanation:

take 39 degree as reference angle

using cos rule

cos 39 = adjacent / hypotenuse

0.77 = x / 7

x = 7*0.77

x = 5.39

x = 5.4

posledela3 years ago

4 0

Answer:

D. 5.4

Step-by-step explanation:

Using trigonometric ratio

cos 39 = x/7

cross multiple

x = cos39(7)

x=5.4

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Find the missing side. Round to the nearest tenth. A.7.4B.4.4C.6.4D.5.4​

Find the missing side. Round to the nearest tenth. A.7.4B.4.4C.6.4D.5.4