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breeannaalanizj2000
10.12.2020 •
Mathematics
Can someone plz help me with this question asap: solve the equation for x in the terms of c. 2/3(cx + 1/2) - 1/4 = 5/2
A: x = 9/4c
B: x = 27/8c
C: x = 29/8c
D: x = 29/18c
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Ответ:
Ответ:
BC ≈ 5.44 m
Step-by-step explanation:
Using the cosine ratio in the right triangle
cosθ =
=
, that is
cos27° =
( multiply both sides by 6.1 )
6.1 × cos27° = BC , then
BC ≈ 5.44 m ( to 3 significant figures )