First off, we'll convert the mixed fractions to "improper",
Answer: 47.1/15
Step-by-step explanation:
We define Circumference by C= pie X D[diameter]
Hence pie= C/ D= 47.1/15
we know that given terms were i geometric progression.
which means common ratio is same between two consecutive terms .
here we have 8,40,200,1000.
we know that common ratio =second term/first term =40/8=5.
so each and every terms is multiplied by 5 to get next term for this series the term after 1000 is 5000 =1000*5.
in part b we have another series which is having common ratio of -2.
so we need to multiply with -2 to find next term.
80*(-2)=-160.
for part c the common ratio is -2 .
so we need to multiply with -2 *previous term =-2*16 =-32.
The answer is -6 sorry could not explain because have to go somewhere hope it helped
