Answer:
Part 1) 
Part 2) 
Step-by-step explanation:
Part 1) what is the measure of angle AFE
we know that
The measure of the interior angle is the semisum of the arches that comprise it and its opposite.
<u>Note:</u> In this problem the correct measure of arc EA is 40 degrees (see the picture)
so

substitute the given values

Part 2) what is the measure of angle EFB?
we know that
---> by supplementary angles (form a linear pair)
so
substitute the given value


Answer:

Step-by-step explanation:






Solve for a




The value of a is 3
Hope I helped!
Best regards! :D
~
The answer should be half (Can be written as .5 or 1/2) because there are only two types of twins, fraternal and identical. So therefore the probability is half
<h3>3/2b + 5 < 17</h3>
<em>We subtract 5 from both sides of the inequality.</em>
<h3>3/2b + 5 - 5 < 17 - 5</h3><h3>3/2 b < 12</h3>
<em>Multiply both sides by 2/3.</em>
<h3>( 2/3) * (3/2b) < (2/3) * 12</h3><h3>b < 8</h3>
<em>Therefore, the </em><em>correct option</em><em> is </em><em>alternative "A".</em>
<em>We would think that it is </em><em>option B,</em><em> but the only difference is that it changes the</em><em> direction of the sign.</em>