Find the difference of 0.0014 and 0.00061. Write your answer in scientific notation the correct answer gets

What is the absolute value of the complex number -4-sqrt2i

(x-5)1/2+5=2 what is a possible solution?

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”?