naynaydonovan1 naynaydonovan1
  • 06-11-2019
  • Mathematics
contestada

if y varies directly as the x^2 and y = 448 when x = 8, what is the value of y when x = 9?
a 567
b. 72
c. 504
d. 56​

Respuesta :

ehigboriamarvelous01 ehigboriamarvelous01
  • 06-11-2019

Answer:

a. 567

Step-by-step explanation:

from the first statement, y=kx^2

k=y/x^2

when x=8, y=448,

k=448/8^2

k=7.

thus when x=9, k=7,

y=7*9^2

y=567

Answer Link
keonna2424
keonna2424 keonna2424
  • 22-10-2020

Answer:

567

Step-by-step explanation:

Answer Link

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