If dh=4x-2 and fh=x+28, find the value of x for which defg must be a parallelogram.
a)7
b)8
c)10
d)6

The suare root of 9x plus 7 plus the square rot of 2x equall to 7

Since we have computer algebra systems that can solve polynomial division problems for us, why is it necessary to learn how to do these things by hand?

The random variable x has probability density function f (x) = k(−x²+5x−4) 1 ≤ x ≤ 4 or =0 1 show that k = 2/9 find 2 e(x), 3 the mode of x, 4 the cumulative distribution function f(x) for all x. 5 evaluate p(x ≤ 2.5). 6 deduce the value of the median and comment on the shape of the distribution.