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>
<7 and <10 are each 84 degrees
The two formulas i used should be in your book
Angle a corresponds to angle e
Angle b corresponds to angle d
Angle c corresponds to angle c
Side ab corresponds to side cd
Side ac corresponds to side ce
Side bc corresponds to side de
Answer and Step-by-step explanation:
The answer would be D. 82%.
All we need to do is add together the amount that can swim.
We do this because all of the numbers added together equals 1, so the parts that are split off represent the percentages (in decimal form) of the total amount of people.
0.34 + 0.48 = 0.82.
Multiply by 100 and we get 82%.
<u><em>#teamtrees #PAW (Plant And Water)</em></u>
