The area of a triangle is 54 cm2. the base is 18 cm. what is the height of the triangle? let h represent the height of the triangle. enter answers in the boxes to create a model to represent the situation. the model is based on the formula for the area of a triangle. a=12bh _ = 1/2⋅ _ ⋅h

Im literally having a mental breakdown

Which of the following points is a solution to the system of equations shown? y - x = -1 x + y = -5

Step by step explanation pls for 10 pts the length of a rectangular board is 3 feet less than twice its width. a second rectangular board is such that each of its dimensions is the reciprocal of the corresponding dimensions of the first rectangular board. if the perimeter of the second board is one-fifth the perimeter of the first, what is the perimeter of the first rectangular board?