Pls help due in 15 Min The following stops are used to rewrite the polynomial expression (x + 4y + 2)(x-7).

Step 1: x(x - 7y) + 4y(x - 7y) + 2(x - 7y)

Step 2: x? - 7xy + 4yx - 28y + xx - 7xy

Step 3: x? - 7xy + 4xy - 28y + x2 - 7yz

Step 4: x? - 3xy - 28y2 + xx - 7yz

Identify the property used in each of the steps:

Step 1:

What property used

Step 2:

What property used

Step 3:

What Property used

If f(x) = 2x - 6 and g(x) = 3x + 9, find (f - g)(x). a. (f-g)(x) = x + 15 o o b. (f- g)(x) = -x - 15 o c. (f- g)(x) = 5x + 3 o d. (f- g)(x) = -x+3 submit

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !

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.