Mathematics, 20.07.2020 14:01 Joxnny8757
I NEED HELP The height h (in feet) of an object t seconds after it is dropped can be modeled by the quadratic equation h = -16t2 + h0, where h0 is the initial height of the object. Suppose a small rock dislodges from a ledge that is 255 ft above a canyon floor. Solve the equation h = -16t2 + 255 for t, using the quadratic formula to determine the time it takes the rock to reach the canyon floor. (A) t β 0.87 s (B) t β4 s (C) t = 8.5 s (D) t = 16 s
Answers: 1
Mathematics, 21.06.2019 16:30
Jackie purchased 3 bottles of water and 2 cups of coffee for a family for $7.35. brian bought 4 bottles of water and 1 cup of coffee for his family for $7.15. how much does each bottle of water cost? how much does each cup of coffee cost? i need this done
Answers: 3
Mathematics, 21.06.2019 18:20
Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions.a. x2 β 4x β 7 = 0b. 4r2 + 11r β 3 = 0c. 3m2 + 7 = 0d. t2 + 2t + 1 = 0
Answers: 1
I NEED HELP The height h (in feet) of an object t seconds after it is dropped can be modeled by the...
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