O No Is each of the following a geometric
sequence?
A -1,3,-9, 27, ... O Yes
B -1, -3, 5, 7, ... O Yes
C -1,4,-9, 16, ... O Yes
D -1, 2, 4, 8, ... O Yes
O No
O No
O No

step-by-step explanation:

the true ones are a b and d

id

step-by-step explanation:

idk

idk

i know the way

and

idk

the answer is c hope this

1. 16.64

a^2+b^2=c^2

pr^2=pq^2+qr^2

pr^2=14^2+ 9^2

pr^2=196+81

pr= sqr root of 277

16.64

2. 11.31

c^2-a^2=b^2

18^2- 14^2=b^2

b^2=324-196

b=sqr root of 126

b=11.31

hope it ! (btw im in connections academy to, good luck! )