The resistance for resistors of a certain type is a random variable Xhaving the normal distribution with mean 9 ohms and standard devia-tion 0.4 ohms. A resistor is acceptable if its resistance is between 8.6and 9.8 ohms.(a) What is the probability that a randomly chosen resistor is accept-able

And using the normal standard distirbution or excel we got:

Step-by-step explanation:

Let X the random variable that represent the resistance for resistors of a population, and for this case we know the distribution for X is given by:

Where and

We are interested on this probability

And the z score formula is given by:

Using this formula we got:

And using the normal standard distirbution or excel we got:

step-by-step explanation:

a net is a diagram that shows a “flattened” view of a solid. in a net, each face and base is shown with all of its dimensions. a net can also serve as a pattern to build a three-dimensional solid.

a pyramid is a three-dimensional object with a base that is a polygon and triangular faces that meet at one vertex.

" the net of a triangular pyramid consists of four triangles. the base here we are given of the pyramid is a equilateral   triangle, and the lateral faces are also triangles "