Choose the answer. a rectangular side yard was 9 yards long and 3 yards wide. what is the area of the side yard?
a.
27 yd
b.
27 yd²
c.
18 yd
d.
18 yd²

The vertex of this parabola is at (-2,-3). when the x-value is -1, the y-value is -5. what is the coefficient of the squared expression in the parabola's equation?

Is the power produced directly proportional to the wind speed, give reasons for your answer?

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.