tyrellcannon7
tyrellcannon7 tyrellcannon7
  • 23-07-2021
  • Mathematics
contestada

What is the length of CD? In this diagram, AABC ~ AEDC. 20-% c * 7 21​

What is the length of CD In this diagram AABC AEDC 20 c 7 21 class=

Respuesta :

Аноним Аноним
  • 23-07-2021

Answer:

[tex]\frac{BC}{DC}=\frac{AC}{EC}[/tex]

[tex]\frac{20-x}{x} =\frac{21}{7}[/tex]

[tex]\frac{20-x}{x} =3[/tex]

[tex]20-x=3x[/tex]

[tex]4x=20[/tex]

[tex]x=5[/tex]

[tex]So, CD=5[/tex]

OAmalOHopeO

Answer Link

Otras preguntas

Need help to Write 4.01 as a percent
x=square root of 880-8x
n what way did the Christian Crusades contribute to the decline of the Byzantine Empire ?
Write your answer as a fraction in simplest form subtract 5/8-3/5
how did harriet bishop impact the future of minnesota
how did harriet bishop impact the future of minnesota
Helpers are needed to prepare for the fete. Each helper can make either 2 large cakes per hour, or 35 small cakes per hour. The kitchen is available for 3 hour
The electric company charges 3 cents per kilowatt-hour. George used 2800 kilowatt-hours in april, 3200 kilowatt-hours in may and 3600 kilowatt-hours in June. W
How do you solve / figure 8 x 51 (Distributive property)
Element X is found in two forms: 90.0% is an isotope that has a mass of 20.0, and 10.0% is an isotope that has a mass of 22.0. What is the atomic mass of elemen