An architect decides to use a parabolic arch for the main entrance of a science museum. in one of his plans, the top edge of the arch is described by the graph of y = -1/4x^2 + 5/2x + 15. what are the coordinates of the vertex of the parabola?

The decibel level of sound is 50 db greater on a busy street than in a quiet room where the intensity of sound is watt/m2. the level of sound in the quiet room is db, and the intensity of sound in the busy street is watt/m2. use the formula , where is the sound level in decibels, i is the intensity of sound, and is the smallest sound intensity that can be heard by the human ear (roughly equal to watts/m2).

Stacey filled her 1/2 cup of measuring cup seven times to have enough flour for a cake recipe how much flour does the cake recipe calls for

Using the information in the customer order, determine the length and width of the garden. enter the dimensions. length: feet width: feet