Answer:
A= 60
Step-by-step explanation:
1/2*12*10
60
100/2658 = 0.0376
We can solve this by using a calculator or long division!
The easiest way to solve this problem is to put (2, -5) into both equations and see if it satisfies/works for both of them. 2 = x and -5 = y.
So for <span>2x + 5y = -19,
</span><span>2(2) + 5(-5) = -19
4 - 25 = -19
-21 </span><span>≠ -19.
You can continue and try it out for </span><span>6y - 8x = -54
6(-5) - 8(2) = -54
-30 - 16 = -54
-46</span> ≠ -54
But since (2, -5) already doesn't work for one equation, it cannot be a solution to the system of equations.
The fourth term of the binomial expansion 
can be calculated using the formula for (i+1)-th term of the binomial expansion:
In order to find term 
, determine that
Now
Answer: correct choice is A
