The formula to find any term of an an arithmetic sequence is given by
=
=(n-1)d,
where we have first term
=8,
and d which is the common difference , and n is the term we need to find (in our case is 20)
the difference d=3, as you see each number is the previous minus 3
for S20=8+(20-1)*(-3)=8+(19)*(-3)=8-57=-49
S20=-49, this the 20th term
Answer: Third option is correct.
Step-by-step explanation:
Since we have given that
We have the value of x i.e. x = -6
So, we will put it in the function of H(x)
Hence, the value of function H(x) is 24
So, Third option is correct.
Answer:
489.5 + m = 756.80 (the amount elias has, added to marks is equal to the total
(756.8- 489.5 = 267.30 which is the amount mark has.)
m= 267.3
the last option is the correct option
Step-by-step explanation:
There is no distributive property in this problem. Distributive property is only used when it looks like this 5(7+1). You distribute the 5 to the 7 and the 1. But in that problem you can’t. You just add.