ciarakelly636owuiup ciarakelly636owuiup
  • 25-09-2017
  • Mathematics
contestada

please help me solve this maths problem ☺

please help me solve this maths problem class=

Respuesta :

choixongdong
choixongdong choixongdong
  • 25-09-2017
I)

(2x -3)^2 - 2x(2x - 5)
= 4x^2 - 12x + 9 - 4x^2 + 10x
= -2x + 9 

II)
(2x+1)/3 = 1/2
2x + 1 = 3/2
2x = 1/2
  x = 1/4

III)
5 - (3x+4) >= 4
5 - 3x - 4 >= 4
-3x + 1 >= 4
-3x >= 3 
   x <= -1

iV)

2(x + x + 2) = 18
2(2x + 2) = 18
4x + 4 = 18
4x = 14
  x = 3.5 cm

 
Answer Link

Otras preguntas

The lowest elevation in California is about 80 meters below sea level. The lowest elevation in Louisiana is also below sea level and is about 1 4 the value of C
I WILL MARK U BRAINLIEST PLZHow did taxation benefit ancient Egypt? ​
1/2 (4x - 16)=-4(3x-2) 2
What happens to the sun's energy as it travels to Earth's atmosphere? A. Some of it is destroyed in Earth's atmosphere. B. It is completely trapped by Earth's s
Select all the correct locations on the image. Which route did the explorer John Cabot take during his first voyage to the New World? core​
How did the ability to work with metal change Mesopotamian civilization? cross out A. It led to people moving to less populated areas. cross out B. It led to tr
HELP PLEASE HELP HELP PLESAE HELP!
Which equation could possibly represent the graphed function?
Which of the following equations is equivalent to 5(2p – 6) = 40? 10p – 6 = 40 10p – 30 = 40 7p – 11 = 40 7p – 1 = 40
Turn y=1/2x + 3/2 into standard form ​