Find the equation of the axis of symmetry and the coordinates of the vertex of the graph of the function y = 4x2 – 8x – 3.

a. x = 1; vertex: (1, – 7)
b. x = 1; vertex: (1, – 11)
c. x = –1; vertex: (–1, 9)
d. x = –1; vertex: (–1, – 7)

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

Me asap! what is the slope of this line? enter your answer in the box.

What is the volume of a cone with a height of 6 cm in the radius of 2 cm