In the following exercises, solve. Round answers to the nearest tenth. 204. A stone is thrown vertically upward from a platform that is 20 feet high at a rate of 160 ft/sec. Use the quadratic equation h = − 16 t 2 + 160 t + 20 to find how long it will take the stone to reach its maximum height, and then find the maximum height.
In the following exercises, solve. Round answers to the nearest tenth. 204. A stone is thrown vertically upward from a platform that is 20 feet high at a rate of 160 ft/sec. Use the quadratic equation h = − 16 t 2 + 160 t + 20 to find how long it will take the stone to reach its maximum height, and then find the maximum height.
In the following exercises, solve. Round answers to the nearest tenth.
204. A stone is thrown vertically upward from a platform that is 20 feet high at a rate of 160 ft/sec. Use the quadratic equation
h
=
−
16
t
2
+
160
t
+
20
to find how long it will take the stone to reach its maximum height, and then find the maximum height.
Formula Formula A polynomial with degree 2 is called a quadratic polynomial. A quadratic equation can be simplified to the standard form: ax² + bx + c = 0 Where, a ≠ 0. A, b, c are coefficients. c is also called "constant". 'x' is the unknown quantity
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