Which is a recursive formula for the sequence 99.4,0, -99.4, -198.8, where f(1)= 99.4? F(n+1)=f(n)-99.4, n > 1
F(n+1)=f(n)-99.4,n > 1
F(n+1)=99.4f(n), n > 1
F(n+1)=-99.4f(n), n > 1

Suppose there are 10 five and six-year-old attending a birthday party. when a 30 year old mother walks into the room with an infant in her arms, what happens to the mean age in the room? what happens to the standard deviation of ages in the room? a. the mean and standard deviation of both change. b. the meaning will change, but the standard deviation will stay approximately the same. c. i mean will stay approximately the same, but the standard deviation will change. d. the mean and standard deviation will both stay approximately the same.

Asystem of equation is shown below 6x - 2y equals 3 . and 5x + 3y equals 4. would you solve by substitution or elimination? and why

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.