Given the system
|-x-3y- 4z = 2
-x+2y-4z = 0, which is true?
2x-y+5z = 1
The system has no solutions.
The system has exactly one solution.
The system has exactly three solutions.
The system has an infinite number of solutions.

What is the lcm of 16 and 40 ? 24 and 40 ?

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.

Use complete sentences to differentiate between a regular tessellation, and a pure tessellation. be sure to include specific types of polygons in your explanation.