. Use the Second Derivative Test to determine concavity, point of inflection & relative extrema of the function g(x)=x√(x+3). State no concavity, no point of inflection or no relative extrema if none exist

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. how many hours after the truck's departure will the two meet?

Aubrey read 29 books and eli read 52 books what number is equal to the number of books aubrey read?

Jalen charges $25.50 for every 3 hours of yard work he does for his neighbors. ralph charges $34 for every 4 hours of work that he does. who charges less? opinions: 1.they charge the same amount 2.jalen 3.ralph