There are 40 pupils in a class. there are more girls than boys. how many boys are there in terms of x

What is the value of x in the equation 6(x + 1) – 5x = 8 + 2(x – 1)?

Given: ac and db are diameters. m∠3=

Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 127 millimeters, and a variance of 36. if a random sample of 35 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 0.5 millimeters? round your answer to four decimal places.