Which equation gives the length of an arc S intersected by a central angle of 3 rad in a circle with radius of 4 inches

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?

Find the zero function by factoring (try to show work) h(x)=-x^2-6x-9

Write the fraction or mixed number and the decimal shown by the model