What is the value of the expression -7-5+4

Which of the following is the result of expanding the series

Select the correct answer from each drop-down menu. consider the following polynomials equations. 3x^2(x-1) and -3x^3+ 4x^2-2x+1 perform each operation and determine if the result is a polynomial. is the result of a + b a polynomial? yes or no is the result of a - b a polynomial? yes or no is the result of a · b a polynomial? yes or no

If p(a) = 0.70 and p(b) = 0.20, then a and b are independent events if