The sum of the first n terms in a geometric sequence given the first term (a1) and the common ratio (r) is calculated through the equation,
<span>Sn </span>= (<span><span><span>a1</span>(1−<span>r^n</span>) / (</span><span>1−r)
Substituting the known terms,
Sn = (20)(1 - (1/4)^4)) / (1 - 1/4)
Sn = 26.5625
Thus, the sum of the first four terms is 26.5625. </span></span>
12 hours (5880 divided by 490)
Answer:
it is
Step-by-step explanation:
because it addition it doesn't matter which way you put it
The equation of the graph is y= -(x+3)^2 +1
Choice A is the correct answer
