Answer:
abc = 8
Step-by-step explanation:
ab=2, bc=4 and ac=8
Multiply all of these together
ac = 2
Multiply by bc =4 (the left on the left and the right on the right)
ac * bc = 2*4
ab^2c =8
Multipy by ac =8 (the left on the left and the right on the right)
ab^2c *ac = 8*8
a^2 b^2 c^2 = 64
Take the square root of each side
sqrt(a^2 b^2 c^2) = ±sqrt(64)
abc = ±8
Since a,b,c are positive numbers
abc = 8
Answer:
It's 8.
Step-by-step explanation:
ab = 2, bc = 4 and ac = 8.
a^2bc = ab * ac = 2*8 = 16
ab^2 c = 2 * 4 = 8
abc^2 = 32
From the second equation:
b^2 = 8/ac = 8/8 = 1. so b = 1.
Therefore abc = ac*1 = ac = 8
