Write each polynomial in standard from. identify the leading coefficient 2x^5-12+3x

-4d^4+1-d^2

4z-2z^2-5z^4

2a+4a^3-5a^2-1

For what value of (y) is 3^3/3^y =1/9

Aresearch study is done to find the average age of all u.s. factory workers. the researchers asked every factory worker in ohio what their birth year is. this research is an example of a census survey convenience sample simple random sample

Maryann’s friends loved her bulletin board, and 4 of them asked her to make one for their homes. she offered to make each of her friends a replica of her bulletin board that measures 2 meters by 3 meters. how many kilograms of burlap should maryann collect to complete the bulletin boards for her friends? maryann should collect kg of burlap.