In the following exercises, solve. Round answers to the nearest tenth. 203. An arrow is shot vertically upward from a platform 45 feet high at a rate of 168 ft/sec. Use the quadratic equation h = − 16 t 2 + 168 t + 45 to find how long it will take the arrow to reach its maximum height, and then find the maximum height.
In the following exercises, solve. Round answers to the nearest tenth. 203. An arrow is shot vertically upward from a platform 45 feet high at a rate of 168 ft/sec. Use the quadratic equation h = − 16 t 2 + 168 t + 45 to find how long it will take the arrow to reach its maximum height, and then find the maximum height.
In the following exercises, solve. Round answers to the nearest tenth.
203. An arrow is shot vertically upward from a platform 45 feet high at a rate of 168 ft/sec. Use the quadratic equation
h
=
−
16
t
2
+
168
t
+
45
to find how long it will take the arrow 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
Differential Equations and Linear Algebra (4th Edition)
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