Answer:
the blank number is 23
Step-by-step explanation:
8, 15, 27, x, 20
common ratio, r= T2÷ T1= T3÷ T2
= 15 ÷ 8 =27÷ 15
= 1.8 = 1.8
20 ÷ x = x ÷ 27
( cross multiply,)
x²= 540
x =√540
x = 23.24
x = 23
D. Fanny: 2.849
It is D because the 4 is in the hundreds place and the 8 is to the left to it and it is 5 and above so the means you round it to 2.85.
4m^2+3m-1=0
a=4
b=3
c=-1
input
x= 
x= 
x= 
x= 
x= 
or 
x=-1 or 1/4
