Which characteristic is correct for the function
f(x) = -3x^4 + 7x^2?
odd
neither even nor odd
even
both even and odd

Could somebody me with this radical simplification?

Question 1 of 10 2 points different groups of 50 graduates of an engineering school were asked the starting annual salary for their first engineering job after graduation, and the sampling variability was low. if the average salary of one of the groups was $65,000, which of these is least likely to be the average salary of another of the groups? o a. $64,000 o b. $65,000 o c. $67,000 o d. $54,000

Need showing work for this problem 56.25 ×25.80