The formula for finding the area of a sector of a circle is a=π r 2 ( x 360 ) a=πr2(x360) , where r is the radius of the circle and x is the measure of the central angle of the sector. solve for x.  x=aπr2360x=a360πr2x=360πr2ax=360aπr

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )