Một bộ đề cương gồm 15 câu .Đề thi sẽ được chọn ngẫu nhiên 4 câu trong 15 câu này .Một sinh viên đã ôn được 10 câu .Tính xác xuất để sinh viên trả lời ít nhất 1 câu khi làm bài thi

Danny draws a transversal, t, on two parallel lines ab and cd, as shown below: he makes the following table to prove that the alternate interior angles are equal: which is the missing justification? (6 points) corresponding angles formed by a transversal on parallel lines are supplementary. corresponding angles formed by a transversal on parallel lines are congruent. co-interior angles formed by a transversal on parallel lines are congruent. co-exterior angles formed by a transversal on parallel lines are congruent.

Lindsay used two points, (x, y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?

Solve the system of equations using the substitution method. {y=−3x+7x=−2y−16 enter your answers in the boxes.