Using the given zero, find all other zeros of f(x). -2i is a zero of f(x) = x4 - 45x2 - 196
1 answer:
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Answer:
Therefore the area of the screen cleared is 1414.28 cm².
Step-by-step explanation:
Given:
a windscreen wiper of a vehicle of length 30 cm
Consider this length as Radius of Semicircle, r = 30 cm
clears out an angle of 180 degrees implies Semicircle Shape
pie=22/7
To Find:
Area of the screen cleared
= ?
Solution:
We have
Substituting r and pie we get
Therefore the area of the screen cleared is 1414.28 cm².
For this, we will be using the quadratic formula, which is , with a=x^2 coefficient, b=x coefficient, and c = constant. Our equation will look like this:
Firstly, solve the multiplications and the exponents:
Next, do the addition:
Next, your equation will be split into two: . Solve them separately, and your answer will be