An arc is intercepted by a two radio that form an angle of 3π/4 radians. If the radius of the circle is 7 inches then which of t he following is closest to the arc length, s, also measured in inches?
(1) 12.8
(2) 16.5
(3) 18.5
(4) 21.8
1 answer:
The correct answer is 18.5
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3x^(2)+4x-3x-5-2=0 3x^(2)+x-7=0 Discriminat= b^(2)-4ac= 1^(2)-4(3)(-7)= 1-12(-7)=1+84=85 The discrimination is bigger than 0 (delta>0) therefore there are 2 real solutions
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Step-by-step explanation:
Use distance formula
d =
substitute in points and solve
d =
d =
d =
d =
d = 26.30589288
d = 26.31 rounded
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