The graph represents one side of the roof of a building. The slope of the line is
.

Which shows the correct substitution of the values a, b and c from the equation 1=-2x+3x^2+1

Plz hurry evaluate the expression a+b where a=8 and b=19

How do you find p(a and b) if a and b are independent events for two or more actions, such as tossing a coin twice and finding p(heads and heads)? 2. how do you find p(a or b) if a and b are independent events for one action, such as spinning a four-color spinner once and finding p(red or blue)?