Which of the equations below is a quadratic function 3 points
f(x)= 2x-4
f(x)= 2x^2 +3x - 12
f(x)= 5
f(x)= 7x

3× __ -2=15 7 2× __+1=7 5 7× =22 15 5× __+10=2 8 × __+4=20 6 × =10 3 × __+2=8 6 × __+8=8 9 × __+7=20 6

Select the correct answer. joshua likes to read. he read 6 books when he was 6 years old. every year he doubled the number of books he read the previous year. how many total books did he read between the ages of 6 and 10? a. 60 b. 90 c.186 d.187

Which simplifys to a+ b? a-(1-b)+1 -(1-a)-b+1 (a--1) -1)+1