Answer:
7,5
Step-by-step explanation:
pattern: +3, then -2
4+3 = 7
7-2 = 5
Answer:
-(x^(307) - x + 5 - f (x)) = 0
Step-by-step explanation:
Answer:
x = 21º
Step-by-step explanation:
∆ ABC is isosceles therefor
Angles B and C are congruent
(180 - 18)/2 = 162/2 = 81º
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∆ BCD is equilateral therefor all angles are 60º
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x = = 81 - 60
x = 21º