Which of the following statements about crane hand signal training are true? a. both statements are true about crane hand signal training b. it is a requirement that a poster be posted at the jobsite with illustrations of the hand signals that every operator and crane personnel must know c. the hand signals for crane and derrick operators should be those set by the american national standard institute

Which of the following is a way that advancements in technology improve humans' ability to measure air quality and protect human health? a. air quality data gathered by new instruments can be used to reduce exposure to pollutants. b. new technologies enable natural and human-made pollution sources to be located and monitored. c. air quality data gathered by new instruments can be used to predict trends in pollution over time. d. new technologies allow governments to make informed decisions about the regulation of pollution. (choose more than one)

Write a program that begins by reading in a series of positive integers on a single line of input and then computes and prints the product of those integers. integers are accepted and multiplied until the user enters an integer less than 1. this final number is not part of the product. then, the program prints the product. if the first entered number is negative or 0, the program must print “bad input.” and terminate immediately. next, the program determines and prints the prime factorization of the product, listing the factors in increasing order. if a prime number is not a factor of the product, then it

Where can page numbers appear? check all that apply. in the header inside tables in the footer at the bottom of columns at the top of columns