calculus
Wiley jumps straight up in the air from the edge of a cliff so that when he comes down he falls off the cliff. The cliff is 40 feet off the ground. His height t seconds after he jumps is s= -16t2 + 12t + 40.What is the maximum height? What is his maximum velocity?
calculus
let f(x) = 2x^5-5x^4 find open intervals on which f is a) increasing b)decreasing Find values of x at which f has c) relative max and min find open intervals d) concave upward e) concave downward c) find the inflection points of f
Physics
How many calories it take to elevate the temperature of 10 gr of water-from 26C to 50C?
MATH
BENNY PLAYS TWO SPORTS. HE PLAYS SOCCER FOR 3/4 OF THE TIME AND PLAYS BASEBALL FOR 30-MINUTES. HOW MANY MORE MINUTES DOES HE PLAY SOCCER THAN BASEBALL? My answer is he plays soccer 7 minutes more. Am I correct. How do I make a diagram for this problem. Thanks
Math
thanks
Math
Ms. Kenny grew 3/5 as many zinnias as Mr. Hadam. If Ms. Kenny has 12 zinnias, how many zinnias do they have in all. I calculated that they have 20 zinnias total. Am I correct. Thanks
Jr. Math
thanks
college algebra
solve x^6 - 64 = 0
College Algebra
solve the equation for r: S= (rL-a)/(r-x)
math
how would you fidn the area of a square if you know one side is 4 feet long
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