Answer:
a7=4/3 or a7=-4/3
Step-by-step explanation:
using the geometric sequences formula
an=ar^n-1
a2=ar
a4=ar³
when a2=324 and a4=36
324=ar...........(1)
36=ar³............(2)
from equation (1) a=324/r substitute in equation (2)
we have :
36=324/r *r³
36=324r²
r²=36/324
r²=1/9
r=±1/3
substitute when r=±1/3 in (1)
324=a(±1/3)
a=±972
so the 7th term is
when r=±1/3
we have
a7=ar^6
a7=±972(±1/3)^6
a7=972/729
a7=4/3 or a7=-4/3
Answer:
72 cubic inches
Step-by-step explanation:
The volume of a rectangular prism shape, such as a brick, is the product of its dimensions:
V = LWH
V = (8 in)(4 in)(2.25 in) = 72 in^3
The volume of each brick is 72 cubic inches.
Answer:
Step-by-step explanation:
You are dividing x by 5 and then subtracting 4.
Answer: 22 degrees
Step-by-step explanation:
Since the angle 180° is in the third quadrant, subtract 180° from 202°.
The shape is closed because the sides touch.
