Plz help to solve ques9
Attachments:
Answers
Answered by
0
Height of room—x:
2(x[2x]) + 2(7x) = 312(25/100)
4x² + 14x = 78
x² + 1.75x = 19.5 + 1.75²
x² + 1.75x = 19.5 + 3.0625
(x + 1.75)² = 22.5625
x + 1.75 = 4.75
x = 3
Answer: 3 meters is the height of the room.
2(x[2x]) + 2(7x) = 312(25/100)
4x² + 14x = 78
x² + 1.75x = 19.5 + 1.75²
x² + 1.75x = 19.5 + 3.0625
(x + 1.75)² = 22.5625
x + 1.75 = 4.75
x = 3
Answer: 3 meters is the height of the room.
Similar questions