Which of the following describes exponential decay?
a) The amount at a given time can be calculated by adding an amount to the previous amount.
b) The amount at a given time can be calculated by subtracting an amount from the previous amount.
c) The amount at a given time can be calculated by multiplying the previous amount by a value greater than 1.
d) The amount at a given time can be calculated by multiplying the previous amount by a value less than 1.

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.

Which translation maps the vertex of the graph of the function f(x) = x2 onto the vertex of the function g(x) = x2 – 10x +2?

Needmax 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.