teehartinegr teehartinegr

26-01-2020
Mathematics

contestada

15. Find m∠DEC (the picture is not drawn to scale).

15 Find mDEC the picture is not drawn to scale class=

Respuesta :

profarouk profarouk

26-01-2020

Answer:

m∠DEC = 123°

Step-by-step explanation:

First we need to solve for x the equation: x = (x - 45) + (x-12)

x = (x - 45) + (x-12) ⇔ x = 2x -57 ⇔ 0 = x - 57 ⇔ x = 57

since m∠DEC = 180 - x then m∠DEC = 180 - 57 = 123

Answer Link

Otras preguntas

5x+11−(2x+6) what is it? and quick

What was the last state to elect a Democrat government in the south? A. South Carolina B. Georgia C. Florida D. Texas

A _________ presentation should be used to sell a product.

i bring tea in active voice

48seconds to 5 minutes

Lex be a random variable that represents the pH of arterial plasma (le, acidity of the blood). For healthy adults, the mean of the distribution is - 7.4.1 A new

its an emergency please help

answer please whoever answer & explain first gets brainliest. a protein that speeds up a chemical reaction is -- a) enzyme b) peptide bond c) isomer d) pol

what is the image point of (6,4) after a translation left 2 units up 4 units?

Im doing a project on javascript to let the user enter a country and get its capital as a result. However, i cant enter all countries as there are too much of t