What's the answer? Plz explain.

Mathematics

1 answer:

AlekseyPX3 years ago

4 0

You got it! The minimum point of a quadratic function is basically the point at "the bottom of the bowl" on the parabola. Looking at the y-axis, we see that f(x)=-8 is the functions minimum, and the corresponding x value is 2.

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0.1507 or 15.07%.

Step-by-step explanation:

We have been given that the manufacturing of a ball bearing is normally distributed with a mean diameter of 22 millimeters and a standard deviation of .016 millimeters. To be acceptable the diameter needs to be between 21.97 and 22.03 millimeters.

First of all, we will find z-scores for data points using z-score formula.

$z=\frac{x-\mu}{\sigma}$ , where,