
Quadratic FormulaA coin is thrown horizontally with a speed of 12m/s from the top of a bridge. If the coin strikes...We are given the initial speed of the coin and the time it took before it hit the water. The given initial speed is the horizontal speed  that is, the horizontal component of the initial speed....

Quadratic FormulaIf you have quadratic function (parabola) `f(x)=ax^2+bx+c` where `a<0` (as in your case) its maximum value will be `(b^24ac)/(4a)` (that is the height of vertex of parabola), and that maximum...

Quadratic Formulameans the argument of the function cos is an angle has cosin = 1 so angle wit cosin = 1 is only and congruent a round:so: so that: Thank you! but what is the answer in degrees?

MathIn order for the bows to be profitable, the following inequality must be met 0<R(x)C(x). We substitute in the formulas from the problem and we get `0<(6x.3x^2)  (8+2x)` simplify and we...

Quadratic FormulaWhen a ball is thrown into the air, its height depends on the time since the ball was thrown. The...Take note that the equation is in the form h(t) = at^2 +bt + c. Here, a < 0 so the parabola opens upward. Therefore, the maximum height can be found on the ordinate of the vertex. We will...
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