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

The clergy took care of the serfs': clothes spiritual life field work defense
15. Protein is essential to the overall health of the body because it A. sustains life and keeps body systems in good repair. B. helps "bulk up" m
Do you like watching TV? Why?
Which of the following is a good question to ask during an informational interview?
These mountains serve as part of the border between France and Spain
)What property of water explains why large bodies of water do not quickly fluctuate in temperature? Lake and ocean water has a pH above 7, which requires more
An employee earns $16 per hour and 1.75 times that rate for all hours in excess of 40 hours per week. assume that the employee worked 50 hours during the week,
Choose the sentence in which capital letters are used correctly. this afternoon, you and i will play basketball with kathleen and beth. this afternoon, you and
Please helppp!! i need someone to explain
can i please get help with this question?