littleblackdress littleblackdress
  • 19-09-2021
  • Mathematics
contestada

Find the length indicated. Find BD

Find the length indicated Find BD class=

Respuesta :

hnori22003
hnori22003 hnori22003
  • 19-09-2021

BE = 3x - 1

BC = BD - CD = 2x - 4 - 2

DE = CE - CD = 2x - 3 - 2

_______________________

BC + CD + DE = BE

( 2x - 4 - 2 ) + 2 + ( 2x - 3 - 2 ) = 3x - 1

2x - 6 + 2 + 2x - 5 = 3x - 1

2x + 2x - 5 - 6 + 2 = 3x - 1

4x - 11 + 2 = 3x - 1

4x - 9 = 3x - 1

Add both sides 9

4x - 9 + 9 = 3x - 1 + 9

4x = 3x + 8

Subtract both sides 3x

4x - 3x = 3x - 3x + 8

x = 8

___________________

BD = 2x - 4

BD = 2(8 ) - 4

BD = 16 - 4

BD = 12

And we're done...

Answer Link

Otras preguntas

A scientist is studying the growth of a particular species of plant. He writes the following equation to show the height of the plant f(n), in cm, after n days:
Given: 315/1575. Write the prime fractorization of the numerator and the denominator, then write the fraction in lowest terms.
since 5² =25 and (-5)²=25, what are the values for the square root of 5.
In English, explain how the French use the 24 hour clock.
O ye that love mankind! Ye that dare oppose, not only the tyranny, but the tyrant, stand forth! Every spot of the old world is overrun with oppression. Freedom
What does "recessive gene" mean exactly?
how do you multiply 3/4× 16/9
How do you write 2/75/100
Is the graph increasing, decreasing or constant A.increasing B.decreasing C.constant
Which of the following expresses the possible number of positive real solutions for the polynomial equation shown below? x³-4x²-7x+28=0 a. two or zero b. three