Which cube root function is always decreasing as x increases ? a. f(x) = 3√x-8 b. f(x) = 3√x-5 c. f(x) = 3√-(5-x) d. f(x) = -3√x+5

Hello
i just did this like 5 minutes ago. it's the last one. D. :)

I'll do the first one for you. it isn't very hard at all.on number one, you have (50 × 3), which equals 150, and (3 × 3), which equals 9. after you establish that, you add 150 and 9 together. so, (150 + 9) equals 159.this means that 53 × 3 = 159.