Solve 10/6 + 3/6- 5/6 mentally
2 answers:
Answer: 4/3
Step-by-step explanation:
<u>Given</u>
10/6 + 3/6 - 5/6
<u>Add the numerators up (since they have the same denominator)</u>
=(10 + 3 - 5) / 6
<u>Simplify by addition/subtraction</u>
=(13 - 5) / 6
=8 / 6
<u>Divide 2 on both numerator and denominator to simplify the fraction</u>
=(8 ÷ 2) / (6 ÷ 2)
=
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Answer:
see explanation
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°
Subtract the sum of the given angles from 180 for B
B = 180° - (90 + 47)° = 180° - 137° = 43°
-------------------------------------------------------------
tan47° = =
Multiply both sides by 14
14 × tan47° = a, thus
a ≈ 15.0 (to the nearest tenth )
---------------------------------------------------------------
cos47° = =
Multiply both sides by c
c × cos47° = 14 ( divide both sides by cos47° )
c = ≈ 20.5 ( to the nearest tenth )