A company provides home internet networking services and promises customers to be compensated for a delayed service if the service calls cannot be resolved under an hour. Times for service calls is known to follow a normal distribution with a mean of 60 minutes and standard deviation of 12 minutes. What is the shortest range of service times that includes 60% of all service calls?

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square

Which equation can be used to measure the density of water in a spherical water tank? let w represent the number of water particles within the region.

Arrange the steps to solve this system of linear equations in the correct sequence. x + y = -2 2x – 3y = -9 tiles subtract 3x + 3y = -6 (obtained in step 1) from 2x – 3y = -9 (given) to solve for x. substitute the value of x in the first equation (x + y = -2) to get y = 1. the solution for the system of equations is (-3, 1). x = -15 the solution for the system of equations is (-15, 13). add 3x + 3y = -6 (obtained in step 1) to 2x – 3y = -9 (given), and solve for x. x = -3 substitute the value of x in the first equation (x + y = -2) to get y = 13. multiply the first equation by 3: 3(x + y) = 3(-2) 3x + 3y = -6.