For question 40 the answer is B
Honestly this problem you can use both x and y but x tends to be the easier one to use and i would use the first equation because it is easier to solve because all the numbers are even.<span />
After a year the
population will be 98.6% (100% - 1.4%) 98.6% as a decimal is 0.986 ... so after
1 year it will be: <span>
3800 x 0.986
after 2 years it will be:
3800 x 0.986 x 0.986...
after 3 years: 3800 x (0.986)^3
<span>in 2018. And after 4 years it will be 3800 x (0.986)^4 =
which is 3591.62724 or 3592</span></span>
Answer:
c
Step-by-step explanation:
Given that:
since cos (kπ) = 
Then, the series can be expressed as:
In the sum of an alternating series, the best bound on the remainder for the approximation is related to its 
term.
∴
128
328
437
837
Hope it helped
