Leonardo draws a cookie on graph paper using the scale shown below. The cookie has a diameter of 12.5\,\text{cm}12.5cm12, point, 5, start text, c, m, end text in the drawing. Which of the following drawings best represents the diameter of the cookie at the scale Leonardo chose?

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

The perimeter of a rectangle is 42 inches. if the width of the rectangle is 6 inches, what is the length