Answer:
I am pretty sure the answer would be A.
Answer:

Step-by-step explanation:
start by foiling out the given function

next, use the power rule to find the derivative
power rule: To use the power rule, multiply the variable's exponent n, by its coefficient a, then subtract 1 from the exponent. If there's no coefficient (the coefficient is 1), then the exponent will become the new coefficient.

The set X = { x , {x} } would, I think, fit the Bill
So its 2 elements
Answer:
it is 2/3
Step-by-step explanation:
Answer: Earth: radius = 6378 kilometer, diameter = 12756 kilometers.