It is known that a bottle of cologne has on average 4 ounces of content with the standard deviation of 0.13 ounces. A random sample of 100 bottles is selected. The likelihood that the average content of the 100 bottles falls between 3.98 and 4.02 ounces equals a.89.04% b.94.23% c.84.68% d.87.64%

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling

The given diagram shows the parts of a right triangle with an altitude to the hypotenuse. using the two given  measures, find the other four.

What are the measures of angles a, b, and c? show your work and explain your answers. 25 points