Which of the following expression is not a polynomial? a) √7 x3+ 323 – 8
b)172x2 + x – 3
c) 0
d) 4x4 – x2+5
answer correctly or I will report you

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).

The interior angles formed by the side of a hexagon have measures of them up to 720° what is the measure of angle a

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?