2. a blueprint for a building includes a rectangular room that measures 3 inches long and
5.5 inches wide. the scale for the blueprint says that 1 inch on the blueprint is
equivalent to 10 feet in the actual building. what are the dimensions of this
rectangular room in the actual building?

The length of a shadow of the building is 36m. the length of the pole, which is perpendicular to the ground, is 1.9m. the length of the pole's shadow is 1.52m. what is the height of the building?

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)

3x + 4y = 5 x- 3y = -7 solve by substitution