As part of an insurance company’s training program, participants learn how to conduct an analysis of clients’ insurability. The goal is to have participants achieve a time in the range of 32 to 45 minutes. Test results for three participants were the following: Armand, a mean of 37.0 minutes and a standard deviation of 2.0 minutes; Jerry, a mean of 37.0 minutes and a standard deviation of 3.0 minutes; and Melissa, a mean of 38.5 minutes and a standard deviation of 3.0 minutes. a. Compute process capability for the participants and determine whether each is capable. (Do not round intermediate calculations. Round your answers to 2 decimal places.)

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

80

step-by-step explanation:

question: use the following table of a school bus during morning pickups to calculate its average speed between 2.8 km and 4.2 km

answer: 42 km/h

explanation: 1.4/0.033 42.42424 = 42 km/h

question answered by

(jacemorris04)