Pls show work and explain

9514 1404 393

  a) 60°

  b) 60°

  c) 70°

  d) 90°

  e) 40°

Step-by-step explanation:

The applicable relations are ...

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a) The sum of ratio units is 3+5+6+4 = 18, which corresponds to the sum of arcs around the circle: 360°. So, each ratio unit stands for 360°/18 = 20°. The arcs around the circle are ...

  FA = 60°, FC = 100°, CB = 120°, BA = 80°

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b) ∠BAC intercepts are CB, so is half its measure.

  ∠BAC = 60°

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c) ∠AEC is the exterior angle where secants EA and EC intercept arcs FA and CBA. The difference of those arcs is (CBA -FA) = (200° -60°) = 140°.

  ∠AEC = 140°/2

  ∠AEC = 70°

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d) Chords FB and AC intercept arcs FC = 100° and BA = 80°. The average of these measures is ...

  ∠FDC = (100° +80°)/2

  ∠FDC = 90°

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e) ∠GAB is an "inscribed" angle that intercepts arc BA, so has half its measure.

  ∠GAB = 40°

Comment on arc/angle naming

The arc asked for in part (a) has a name that the censor doesn't like. It seems OK with the reverse designation, so we have used FA here to refer to that arc.

well my understanding of this question is they want you to use the y=14.1x -2.3 and put the coordinates they gave you onto the line segment of   y=14.1x -2.3

step-by-step explanation:

the answer is two. hope this !