Answer:
D
Step-by-step explanation:
Common ratio of half means that to get each successive terms, you have to multiply the preceding term by half.
Since first term is 10
2nd term is 
3rd term is 
4th term is 
5th term is 
Answer choice D is right.
Answer:
x1= -4
x2 = 4
Step-by-step explanation:
Set the equation equal to zero
x2 − 16 = 0
then
(x + 4)(x − 4) = 0
(x+4)= 0 which is equal to -4
and
(x-4)= 0 equals 4
hola quien habla español bueno ya no Adios :)
-4,-4 - 9,-1 is the answer, i think
F - Irrational, -13.8
Because the negative sign is not inside of the radical, we can tell that the number is being multiplied by the negative. Thus, do the radical equation first, get the answer 13.8202... and multiply by -1 to get the answer. Also, it is irrational because it is not a perfect square.