Proofs, induction
1) the formula 2+6+10 ++(4n-2)= 2n^2 is true for the domain of positive integers?
2) any intger n> = 2 is either prime or can be respresented as the prodect of prime?

Compare the cost of the bike trips from the two companies shown. for both the cost in a linear function of the number of days which statements is true

Need now 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.

Fred has a spinner that is split into four equal sections: red, blue, green, and yellow. fred spun the spinner 688 times. which of the following would be a good estimate of the number of times the spinner lands on the green section? a. 269 b. 603 c. 344 d. 189