There are two possible triangles with the measures given for triangle abc. b = 20.2, c = 18.3, c = 38°

Two possible triangle:

Step-by-step explanation:

We are given some info about triangle ABC.

b=20.2, c=18.3, C=38°

Using sine law we can find another part of triangles.

Substitute b=20.2, c=18.3, C=38° into above formula and solve for B

Two possible value of B

Case 1:

           (Angle sum property of triangle)

Case 2:

           (Angle sum property of triangle)

Two possible triangle:

Thus, Two possible triangles.

b

step-by-step explanation:

the word superfluous means unnecessary

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!