Step 1) Add
7
to each side of the equation to isolate the
x
term while keeping the equation balanced:
3
x
−
7
+
7
=
27
+
7
3
x
−
0
=
34
3
x
=
34
Step 2) Divide each side of the equation by
3
to solve for
x
while keeping the equation balanced:
3
x
3
=
34
3
3
x
3
=
34
3
x
=
34
3
Let x be the value of the third term.
Since it's a geometric sequence, then:
Third term/Second term = Fourth term/Third term
x/20 = 11.25/x
Cross multiplication:
x^2 = 225
x = 15
So since the ratio is constant, then it is
x/20 = 15/20 = 3/4
So the common ratio is 3/4 or 0.75.
Answer:
-28
Step-by-step explanation:
-4(7)=-28
Answer:
V≈18.63m³
Step-by-step explanation:
V=ABh
3=6.5·8.6
3≈18.63333m³
