Question Category: Linear Equations Select the correct answer.

Jake solved an equation, as shown.

Step Statement
1 1/3x + 7 + 15
2 1/3x + 7- 7 = 15
3 1/3x = 15
4 3 * 1/3x + 3 * 12
5 x = 45
Which statement is true?

Jake made a mistake in step 2.
Jake made a mistake in step 4.
Jake solved the equation correctly.
Jake made a mistake in step 5.

Identify the graph of y = ln x + 1.

Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9

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.