Determina la ecuación de cada una de las siguientes parábolas:
81 Vértice (0,0); foco (1,0)
182. Vértice (0, 0); foco (0, - 2)
183. Vértice (0,0); foco (0,4)
184 Vértice (0,0); directriz y = 1
(185, Vértice (0, 0); directriz x
-1
180. Vértice (0,0); directriz x-
1
2
196.
-
107

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?

Me max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?