Find the area of the quarter-circle of a circle with a diameter of 20 in. Use 3.14 for π and round the answer to the nearest hundredth.

Aheated piece of metal cools according to the function c(x) = (.5)x ? 7, where x is measured in hours. a device is added that aids in cooling according to the function h(x) = ? x ? 2. what will be the temperature of the metal after two hours?

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?

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?