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directions – find the value of x, then find the measure of the indicate…

Question

directions – find the value of x, then find the measure of the indicated angle. create an angle addition equation to solve. find x, then ( mangle nbs ) diagram: points n, b, s, r. ( angle sbr = 42^circ ), ( angle nbs = 12x - 4 ), ( mangle nbr = 17x + 8 ). boxes for ( x = ) and ( mangle nbs = ) blank degrees

Explanation:

Step1: Aplicar la propiedad de adición de ángulos

Sabemos que \( m\angle NBR = m\angle NBS + m\angle SBR \). Sustituyendo los valores dados: \( 17x + 8=(12x - 4)+42 \)

Step2: Resolver la ecuación para x

Simplificar la ecuación: \( 17x + 8 = 12x + 38 \)
Restar \( 12x \) de ambos lados: \( 5x + 8 = 38 \)
Restar 8 de ambos lados: \( 5x = 30 \)
Dividir por 5: \( x = 6 \)

Step3: Calcular \( m\angle NBS \)

Sustituir \( x = 6 \) en \( 12x - 4 \): \( 12(6)-4 = 72 - 4 = 68 \)

Answer:

\( x = 6 \)
\( m\angle NBS = 68 \) degrees