The vertex of the parabola below is at the point (2,-5). Which of the equations below could be the one for this parabola?
A. y= (x - 2)2-5
B. y = (x + 5)2 + 2
C. x = -4(y-2)2
D. y= (x + 2)2-5

Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.

Assume that females have pulse rates that are normally distributed with a mean of mu equals 72.0 beats per minute and a standard deviation of sigma equals 12.5 beats per minute. complete parts (a) through (c) below. a. if 1 adult female is randomly selected, find the probability that her pulse rate is between 65 beats per minute and 79 beats per minute. the probability is? b. if 16 adult females are randomly selected, find the probability that they have pulse rates with a mean between 65 beats per minute and 79 beats per minute. the probability is? c. why can the normal distribution be used in part (b), even though the sample size does not exceed 30?