Jawapan

2015-09-24T14:04:07+08:00
28=1/3×4²(y)1
28 =16/3
y= 28÷16/3
y=5.25
2015-09-29T16:53:15+08:00
V = (1/3)x^2yz
28 = (1/3)(4^2)(y)(1)
28 = (1/3)(16)(y)
(16/3)y = 28
y = 28 X 3/16
y = 5.25