When constructing the centeroid of a triangle the intersection of all three of which type of line is needed?

Angel entered a triathlon (a three-part race). he swam 1 mile, rode his bike 30 miles, and ran 10 miles. how far did he go altogether? a. 11 miles b. 123 miles c. 41 miles d. 40 miles

What is the equation of this graphed line? enter your answer in slope-intercept form in the box.

Varies inversely with x. if y=8.5 when x=-1 find x when y=-1