ANSWER

EXPLANATION
The given geometric sequence is
400, 200, 100...
The first term is

The common ratio is

The nth term is

We substitute the known values to get;




Given y = xy + x^2 +1, first find y = f(x) = (x^2 + 1) / (1 - x). Then use the quotient rule for derivatives.
dy/dx = [( 1 - x)( 2x) - (x^2 + 1)(-1)] / (1 - x)^2. Substitute the value of x = -1 into the above derivative and get -1/2.
400% of a is the 1% of 400a
Answer: -x^4 - 3x^3 - x^2 + 4x + 6
Explanation
Answer:
the answer is 60 x 10^3 in scientific notation
Step-by-step explanation: