Ries?
Identify the value of r and ay for each geometric
series.
0.2 + 0.6 + 1.8 +5.4
s=_
21 =
2 + 10 + 50 + 250
a1 =
20 + 10 + 5 + 2.5
r=
a1 = _
DONE

4

step-by-step explanation:

im pretty sure it's 4 beacsue 8/2 equals 4

keene f. ffnfnfnfnfnfnfn f bfnfnfnfnfj

option (a)

step-by-step explanation:

step 1:   take 2 number whose product equal to 25..

and sum of those two number are -10

step: 2 for example here if we take 5,5 are the number,,

5*5=25

and

5+5=10

but we need -10

so if we take   -5,-5

so -5*-5=25

and -5+(-5)=-10

s0

come the equation

replace -10x by these number

like -5x -5x+25

take common

x(x-5)-5(x-5)=0

(x-5)(x-5)=0