Determine if the sequence is arithmetic. If it is, find the common difference, the 52nd term, and the explicit formula. 13) 4, 16, 36, 64, ...
14) 40, 30, 20, 10, ...

Step-by-step explanation:

13) the difference does not equal So

     It is not arithmetic

14)It is arithmetic

    d= 30-40=20-30=10-20=-10

explicit formula:

a(n) = a +(n-1)d

a(n) = 40 +(n-1)-10

a(52) = 40 +(52-1)-10

         =40-5100

         =-5060

hope this helps

-13

step-by-step explanation:

f(x)=2x-5 for f(-4)

f(-4)   means let x=-4

f(-4) = 2(-4) -5

f(-4) =-8-5

      = -13

25.2

step-by-step explanation:

2+4x6-8/10= 25.2