deon throws a ball into the air. the height, h, of the ball, in meters, at time t seconds is modeled by the function h(t)=-5t^2 + t +4

Dylan is evaluation the expression 13+19+7+10 at one step in his work, dylan rewrites the equation as 13+7+19+10 which property of addition must dylan have used when he evaluated the expression?

Lines a and b are perpendicular. if the slope of line a is 3, what is the slope of line b?

You are living in aldine, tx and you are planning a trip to six flags in arlington, tx. you look on a map that has a scale of 0.5 inches to 30 miles. if the map shows the scale distance from aldine to arlington is 4 inches, how far is the actual distance?