The area of a circle is 78.5 square cm, and a subtending arc on a circle has an arc length of 6 pi. the estimated value of pi is 3.14. the measure of the angle sub tended by the arc is what?

We know that

area of a circle=pi*r²> r=√[area/pi
area=78.5 cm²
r=√[78.5/pi]> r=√25> r=5 cm

circumference=2*pi*r> 2*pi*5> 10*pi cm

if 360° (full circle) has a length of> 10*pi cm
 X> 6*pi cm
x=6*pi*360/(10*pi)> x=216°

the answer is 
216°

i = 2 / - 5

step-by-step explanation:

evaluation of ( 2 - 4 ) ( p + q ) when p = 2 and q = 5 i, by putting values of p and q,                                                                    

0 = ( 2 - 4 ) ( p + q )0 = ( 2 - 4 ) ( 2 + 5 i ),   by multiplying these0 = ( 4 + 10 i - 8 - 20 i )0 = 4 - 8 + 10 i - 20 i0 = - 4 -10 i   0 = 2 ( - 2 - 5 i )0 / 2 = - 2 - 5 i- 2 - 5 i = 0- 5 i = 2i = 2 / - 5

b

step-by-step explanation: sorry if not correct becaude my brother is loud and i could not think!