In 1 year, it erodes 2 5/18
In 8 years, it will erode: 8*2 5/18= 41/9
Answer= 41/9 = 4 5/9
<span>4 ⋅ 6 + 5 ⋅ 7 + 6 ⋅ 8 + ... + 4n( 4n + 2) = 4(4n+1)(8n+7)/6
is false because it isn't even true when n=1.
4 ⋅ 6 = 4(4*1+1)(8*1+7)/6
24 = 4(5)(15)/6
24 = 50
Also 4n(4n+2) is not even the correct formula
for the nth term. The correct nth term formula
of 4 ⋅ 6 + 5 ⋅ 7 + 6 ⋅ 8 + ...
is (n+3)(n+5). So it's wrong all the way around.</span>
Explanation:
There are 340 identical plastic chips numbered 1 through 340 in a box. Then, the total number of possible outcomes is equal to 340.
Now, let E be the event of getting randomly drawing a chip number that is smaller than 217. Then, the favorable outcomes are:
1, 2, 3, ..............,216
Thus, the number of favorable outcomes is equal to 216.
According to the definition of Probability, we get the following expression to find the probability of reaching into the box and randomly drawing a chip number that is smaller than 217:
we can conclude that the correct answer is:
Answer:
Answer:
y=-6/5+9
Step-by-step explanation:
your going ro put it in y=mx+b format
so it would be ur equation 12x+10y=90
subtract 12x from both sides and get 10y=-12x+90
u have to get 10 by itself so you divide 10 to everything and get y=-12/10x+90/10
you have to simplify so get y=-6/5+9
