Answer:
9/28
Step-by-step explanation:
9+4+15=28 total balls
9= total red balls
total red balls/total balls= probability of pulling out one red ball
9/28
(Can I have brainliest?)
Its independent because it does not depend on the answer before
Because the second derivative of the function at the point is negative, the graph must be concave down at this point. Because the first derivative indicates that the function is also likely to be a maximum or minimum, the point must be a maximum.
It is x * y * z for a little hint
This is pretty easy math.
All we have to do here is multiply the hours times the constant (10$ an hour)
20*10=200$
40*10=400$
60*10=600$
All together he makes 1,200$.
-Seth