Answer:
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Step-by-step explanation:
hug js at Udinehebdg sorry this is for points , lol I wish I knew but sorry I dontbut good luck !
Answer:
Step-by-step explanation:
There were 1000 trees in the first year and every year new trees are getting added.
The sequence formed for the new trees every year is
Year 1 2 3
New trees 1000 200 40
We see a geometric sequence has been formed by the new trees added
Ratio of the second year and 1st year trees added =
Similarly ratio of trees added in 3rd year to 2nd year =
So there is a common ratio of
Explicit formula of a geometric sequence representing growth of the trees by
where a = number of trees grown first year
r = common ratio
n = number of years
Explicit formula showing the growth of the trees using sigma notation will be
And Formula for number of trees every year will be
Sum of the trees will be
=
=
=
= 2500
Value of given multiply a² - b
Given that;
(a+√b)(a-√b)
Find:
Value of given multiply
Computation:
(a+√b)(a-√b)
Formula used;
⇒ (a + b)(a - b) = a² - b²
So,
⇒ (a+√b)(a-√b)
⇒ (a)² - (√b)²
⇒ a² - b
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Answer:
Step-by-step explanation: