Find the x-coordinates of any relative extrema and inflection point(s) for the function f of x equals 9 times x raised to the one third power plus 9 halves times x raised to the four thirds power . you must justify your answer using an analysis of f ? (x) and f ).

reletive extrema are where the first derivitive is 0 and the sign of the first derivitive changes

inflection points are where the 2nd derivitive is 0 and the sign of the 2nd derivitive changesd

I use f'(x)=1st derivitive and f''(x)=2nd derivitive

remember power rule:

f'(x)

f''(x)

I'm not going to show the work for solving for when f'(x)=0 and f''(x)=0 because at this stage of the game, you should be able to do that easily

f'(x) is equal to 0 when x=-0.5, the sign changes from negative to positive at this point so at this point, the function has a relative minimum

f''(x) is equal to 0 when x=1, the sign changes from negative to positive at this point so at this point, the function is changing from concave down to concave up

which expression can be used to convert 80 us dollars (usd) to australian dollars (aud)?

1 usd = 1.0343 aud

1 aud = 0.9668 usd

step-by-step explanation:

sorry just need the points

answer: 414,377,008

step-by-step explanation:

just multiply it