We know that
a1=1
a2=3
a3=9
a2/a1=3/1----> 3
a3/a2=9/3----> 3
<span>common ration r is equal to 3
number of terms n is 12
The </span><span>Sum of geometric series is given by the formula
</span>Sum=a1*[1-r<span>^n]/[1-r]
</span>Sum=1*[1-3^12]/[1-3]-----> Sum=[1-3^12]/[1-3]----> [3^12-1]/[3-1]
<span>Sum=531440/2-----> 265720
the answer is
265720
</span>
12+5c=c+4
4c=-8
C=-2
Please brainiest and like
The sum of all angles in a triangle has to be 180 so
180-90-73=17
The other non right angle is 17
Answer:
Having public authority in society is there to protect our rights, such as life liberty, and property. They are there to help keep things safe. Public authority is not to demand obedience from citizens it is there to protect them from any harm.
Step-by-step explanation:
