Marcus is designing a structure to hold up scenery for the school play. The structure must be a right triangle.
1 answer:
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Answer:
C
Step-by-step explanation:
The n th term formula of a geometric sequence is
= a
where a is the first term and r the common ratio
Using the second and fourth term, then
ar = 6 → (1)
ar³ = 54 → (2)
Divide (2) by (1)
=
= 9
r² = 9 ⇒ r = = 3 → C
Answer:
Step-by-step explanation:
We start by adding to both sides, giving
, which after simplifying gives
.
We then add to both sides, giving
, which after simplifying gives
.
We can then divide both sides by , giving
, which after simplifying gives
, or
. So, x is 5.