A bag contains 3 red marbles, 4 green marbles, and 2 black marbles. What is the
probability of a red marble being pulled
from the bag being replaced and then
pulling a green marble out?

1. are the triangles similar and if so why? what is the value of x? show your work.

An equation of the line tangent to y=x^3+3x^2+2 at its point of inflection is

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.