Which is the best first step when solving the following system of equations? 50+40= 10
30+ 2d=16
Multiply the first equation by -2.
Solve for d in the second equation.
O Solve for c in the first equation.
O Multiply the second equation by -2.

In the triangles, bc =de and ac fe. if the mzc is greater than the mze, then ab isdfelth

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

Needmax 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.