Answer:
78.09
Step-by-step explanation:
Geometric series are in the form of

Where a is the first term and r is the common ratio .
And it is given that




r=-3,2
So the first five terms are

= 2-6+18-54+162 or 2+4+8+16+32
= 122 or 62
Answer:
<h2>9</h2>
Step-by-step explanation:
(1+2)²
(3)²
9
<h2>hope this helps</h2>
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146 area of trapazoid 90
area of triangle 56