Here's the way to go:
<span>25 Euros $1.20
------------- * --------------- = number of American dollars equal to 25 Euros.
1 1 Euro
Cancel "Euro" in the 2 places where it occurs. The numeric outcome will be $30.</span>
Even number are of the form 2n. The sum of this sequence is the average of the first and last terms times the number of terms.
So the first term is 2 and the 25th term is 50 so the sum is:
(2+50)(25/2)
52*12.5=650
The conjecture they wish you to make is that for n terms, the sum will be:
s=n(n+1)
And for 25 terms that would give you:
s=25*26=650
Answer:
The correct options are A and B.
Step-by-step explanation:
The angles are represented by three capital letters like: ABC or DEF. In these names middle letter represent the vertex of the angle.
The order or first and last letter does effect the angle. It means
![ABC=CBA](https://tex.z-dn.net/?f=ABC%3DCBA)
We have to find the angle with a vertex at Y. It means the middle letter must be Y.
In option A and B the middle letter is Y, therefore both options are correct.
In option C and D the middle letter is not Y, therefore both options are incorrect.