what is the vertex of the parabola?

y+1=−14(x−2)2

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

The mean of 10 values is 19. if further 5 values areincluded the mean becomes 20. what is the meanthese five additional values? a) 10b) 15c) 11d) 22

Robert is placing sod in two square shaped areas of his backyard. one side of the first area is 7.5 feet. one side of the other area is 5.7 feet. the sod costs y dollars per square foot