Babymsk5ana Babymsk5ana
  • 15-03-2017
  • Mathematics
contestada

The diagonal of a tv is 39 inches. it's length is 21inches more than the height. find the dem

Respuesta :

Аноним Аноним
  • 15-03-2017
h² + l² = 39²
h² + (h+21)² = 39²
h² + h² + 42h + 441 = 1521
2h² + 42h + 441 - 1521 = 0
2h² + 42h - 1080 = 0
h² + 21h - 540 = 0
h² + 36h - 15h - 540 = 0
h(h+36) -15(h+36) = 0
(h+36)(h-15)=0

h = 15inch
l = 15+21 = 36 inch

Answer Link

Otras preguntas

Which shape is always a parallelogram (Pentagon,trapezoid,rhombus,or triangle
how do you solve the system of elimination method.x-6y=-30-2x-5y=-25
What can you infer about Lennie's childhood and family life in the book of mice and men?
$6300 is invested , part of it at 12%, and part at 6%.  For a certain year, the total yield is 564.00.  How much was invested at each rate?
How did the Declaration of Independence happen
Which shape is always a parallelogram (Pentagon,trapezoid,rhombus,or triangle
Explain why Mercury,Venus,and Mars are not likely to support life as we know it.
Susan works 8 hours a day and makes $7.00 per hour. How much money does Susan earn in one week if she works 5 days per week?
a chemical spill has just killed off all the algae in a part of the open ocean. how will this affect the food webs  in that part?
Simplify the expression. 11c + 3(-5c + 4d)