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quadrilateral abcd is inscribed in this circle.

what is the measure of angle b?

enter your answer in the box.
m∠b= °

Step-by-step explanation:

In the given picture, we have given cyclic Quadrilateral ABCD which is inscribed in this circle.

We know that in cyclic quadrilateral the sum of the opposite angles is equals to

According to the given picture we have ,

Therefore,

3x + 18 = 147°

step-by-step explanation:

3x + 18 = 147°, because the value of the central angle is equal to the value of the arc formed by it.

i hope i you.

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!