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>
Answer:
Step-by-step explanation:
x = 1.0
how:
we know that the Hyp of the small triangle is 
since we know that , then
= 1^2 + 1^2 by Pythagoras theorem
so each side is 1 :)
Divide <span>150:100 to find out what the density in g/cm3 is. So 150:100 = 1.5 g/cm3</span>
Answer:
its the 3 one
Step-by-step explanation:
Angle y is the same as 85 degrees