We know that
the formula of the <span>the sum of the arithmetic sequence is
Sum=n*(a1+an)/2
n=36
a1=3
a36=?
find a36
an=a1+(n-1)*d
for n=2 a2=9
9=3+(2-1)*d----> 9=3+d----> d=6
so
for n=36
a36=a1+(36-1)*6----> a36=3+35*6----> a36=213
</span>Sum=n*(a1+an)/2-----> 36*[3+213]/2----> 3888
the answer is
3888
Answer:
sorry we can't
Step-by-step explanation:
A ailen maked that thats cazy
Lori because it has a smaller denominator.
When numerator are the same look at who has the smaller numerator
Answer: 0.336
Step-by-step explanation:
n=7
r=2,1,0
p=44%=0.44
q=1-0.44=0.56
7C2(0.44)^2(0.55)^5 +
7C1(0.44)^1(0.56)^6 +
7C0(0.44)^0(0.56)^7
Evaluate:
0.2239055109+
0.0949902167 +
0.0172709485
Sum: 0.33617= 0.336
