mirabellexoxo mirabellexoxo

17-09-2019
Mathematics

contestada

help please, and thank you.

help please and thank you class=

Respuesta :

mathstudent55 mathstudent55

17-09-2019

Answer:

m<ABC = 41

m<DBC = 39

Step-by-step explanation:

m<ABC + m<DBC = m<ABD

m<ABC = 7x - 8

m<DBC = 5x + 4

m<ABD = 80

7x - 8 + 5x + 4 = 80

12x - 4 = 80

12x = 84

x = 7

m<ABC = 7x - 8 = 7(7) - 8 = 49 - 8 = 41

m<DBC = 5x + 4 = 5(7) + 4 = 35 + 4 = 39

m<ABC = 41

m<DBC = 39

Answer Link

Otras preguntas

In what way did the French and Indian War precipitate the Declaration of Independence? Select one: a. It prompted the British Government to try and raise more m

Which of the following best describes the Columbian Exchange? A. the rate at which European currencies were traded for local American goods B. the transfer of p

how to make a sentence with observance

Write an equation for the line that is parallel to the given line that passes through the given point. y=6x-2 (0,0)

Express 396 as a product of prime numbers in index form

Solve for z. z/12 = 6 3/4

my new speakers were $154.99 but I also had to pay the 6% tax what did I pay for my new speakers

Feudal society was characterized by?

What is significant about the public works projects of Pacal the Great? Under his rule very few projects were begun or completed compared to prior rulers. Most

why are aquifers important