Which eA student expanded an expression, as shown. Is the student's work correct? Explain why or why not. −6 ( 4x − 2 13 ) −6(4x) + 6 ( − 2 13 ) −24x − 12 13xpression is equivalent to Negative 5 (3 x minus StartFraction 6 over 7 EndFraction)? Negative 15 x minus StartFraction 30 over 7 EndFraction Negative 15 x minus StartFraction 6 over 7 EndFraction Negative 15 x + StartFraction 6 over 7 EndFraction Negative 15 x + StartFraction 30 over 7 EndFraction

How to choose the sign of the radical in the denominator of the formula for the distance from a point to a line.

Identify the converse of the following conditional: if a point is in the first quadrant, then its coordinates are positive. if the coordinates of a point are not positive, then the point is not in the first quadrant. if the coordinates of a point are positive, then the point is in the first quadrant. if a point is in the first quadrant, then its coordinates are positive. if a point is not in the first quadrant, then the coordinates of the point are not positive.

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab