For the answer to the question above,
So I'll do the computations and try my best to explain, but you're going to have to follow along.
<span>For the sake of simplicity, lets just say that the 3rd term they gave you was >3, and the 25th is >25. So, instead of saying A sub-3 is 3 and A sub-25 is 25, you set 3 as A sub-one. Now, heres the tricky part. Set 25 to A sub-23. (why? because 1 to 23 is the same amount away as 3 to 25). </span>
<span>A3=3, A25=25 } </span>
<span>A1=3, A23=25 </span>
<span>Use the formula An = A1 + (n-1)D. </span>
<span>(read A-sub n is A sub 1 + the nth term minus 1 times D) </span>
<span>A23(A sub-23)= 3 + (23-1)D </span>
<span>25 = 3 + 22D </span>
<span>-3 -3 </span>
<span>22 = 22D </span>
<span>D = 1 </span>
<span>Again, An = A1 + (n-1)D. </span>
<span>A3 = A1 + (3-1) X 1 </span>
<span>3 = A1 + 2 </span>
<span>-2 -2 </span>
<span>A1 = 1 </span>
<span>An = 1 + (n-1) X 1 </span>
<span>An = 1 + 1n - 1 </span>
<span>An = 1n + 0 </span>
<span>So you are left with the general formula An = 1n. You can use this formula to find any term in the sequence, all you gotta do is plug in (An) the number you want. In this case, plug in A sub-5 if you want to find the fifth term. You get </span>
<span>An = 1n </span>
<span>A5 = 1X5 </span>
<span>A5 = 5 </span>
<span>The fifth term in the sequence is 5. (it goes 1,2,3,4,,5,..) </span>
Answer:
A <u>rate</u> is a ratio that compares a <u>quantity</u> to <u>a quantity</u>.
Step-by-step explanation:
A rate is a ratio comparing two quantities measured in different units.
I hope this was helpful! :)
You use in for a triangle.
Answer:
4 because 5 times 4 is 20 and 3 times 4 is 12