Which best explains why this triangle is or is not a right triangle?

A triangle has side lengths 60 inches, 144 inches, 156 inches.
This triangle is not a right triangle: 156 squared + 60 squared not-equals 144 squared.
This triangle is not a right triangle: 156 squared + 144 squared not-equals 60 squared.
This triangle is a right triangle: 60 squared + 156 squared = 144 squared.
This triangle is a right triangle: 60 squared + 144 squared = 156 squared.

Find parametric equations for the line tangent to the curve of intersection of the surfaces at the given point. surfaces: xsquared2plus+2yplus+2zequals=1212 yequals=33 point: left parenthesis 1 comma 3 comma five halves right parenthesis

On saturday morning, calls arrive at ticketmaster at a rate of 108 calls per hour. what is the probability of fewer than three calls in a randomly chosen minute?

Cor d? ? me ? 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.