jetblackcap
jetblackcap
23-04-2018
Mathematics
contestada
HELP IS MUCH NEEDED :)
Respuesta :
Аноним
Аноним
23-04-2018
∠ADC = 112°
∠ADC =6x + 7 + 12x - 3
Equate both:
6x + 7 + 12x - 3 = 112
Solve for x :
6x + 7 + 12x - 3 = 112
Combine like terms:
18x + 4= 112
Take away 4 from both sides:
18x = 108
Divide both sides by 18:
x = 6
Find ∠ADB:
6x + 7 = 6(6) + 7 = 43
Answer: ∠ADB = 43°
Answer Link
Supernova
Supernova
23-04-2018
If m∠ABC = 112°, then m∠ADB + m∠BDC must equal 112°.
Make
m∠ADB + m∠BDC = 112.
6x + 7 + 12x - 3 = 112
18x + 4 = 112
18x = 108
x = 6
Now plug x into 6x + 7 to find m∠ADB.
6(6) + 7 = 43
m∠ADB = 43°
Answer Link
VER TODAS LAS RESPUESTAS ( 41+ )
Otras preguntas
Conversion factors are useful in solving problems in which a given measurement must be expressed in a. some other unit of measure. b. the correct precision. c.
Ased interest rates will shift the aggregate demand curve to the _____ and _____ output demanded.
The pancreas secretes ______ by exocrine mechanisms, and ______ by endocrine mechanisms.
Enter the letter of the graphed function. - - a.y = (x + 2)(x − 1)(x − 3) b.y = (x + 2)(x - 1)(x - 3)² - c. y = (x + 2)(x − 3)(x - 1)² d.y= (x - 1)(x − 3)(x + 2
To the nearest percent how much greater is 8 than 6
sec^2x-2secx.cosx+cos^2x=tan^2x-sin^2x Prove the identity
At a sale, dresses were sold for 61% of their original price. If the dresses originally cost $200 each, how much did a dress cost on sale?
Class ____________ allow you to create one version of a class, without having to replicate code to handle multiple data types.
Dad has 15 oak and maple boards from the lumber yard. each oak board is 6 centimetres thick. each maple board is 9 centimetres thick. when my dad stacks the boa
A group of scientists is conducting an experiment on the effects of media on children. they randomly select 100 children and randomly assign each child to one o
