A polynomial expression is shown below. (a * x ^ 2 - 5)(3x ^ 4 + 2x ^ 2 + 6) - (21x ^ 6 + 12x ^ 3) The expression is simplified to: - x ^ 4 + 12x ^ 3 + 32x ^ 2 - 30 What is the value of a

Name these type of angles shown check all that applies

Determine the number of outcomes in the event. decide whether the event is a simple event or not. upper a computer is used to select randomly a number between 1 and 9 comma inclusive. event upper b is selecting a number greater than 4. event upper b has nothing outcome(s). is the event a simple event? (yes or no) because event upper b has (fewer than, exactly, more than) one outcome.

The base of a triangle exceeds the height by 9 inches. if the area is 180 square inches, find the length of the base and the height of the triangle.