I need help plz! Will mark brainliest if it’s correct

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

Tan198=asin164=? how to solve this? ?

Analyze the diagram below and complete the instructions that follow. how to find tan