The vertex of the parabola below is at the point (1,-3). Which of the equations below could be the one for this parabola?
6
(1, -3)
A. X=-3(4-1)
O B. y= (x + 1)2-3
O c. y = (x-1)2-3
O D. y = (x+3)2 + 1

Triangle dog was rotated to create triangle d'o'g'. describe the transformation using details and degrees. (10 points)

Awater truck is filling a swimming pool. the equation that represents this relationship is y=19.75x where y is the number of gallons of water in the pool and x is the number of minutes the truck has been filling the pool.

1. suppose that scores on a knowledge test are normally distributed with a mean of 71 and a standard deviation of 6. a. label the curve: show the mean and the value at each standard deviation: b. if angelica scored a 76 on the test, what is her z-score? (draw her score on the curve above and label) c. what percent of students did angelica score higher than? how can you tell? d. if 185 students took the test, how many students scored higher than angelica?