Sienna is solving the quadratic equation by completing the square.

3x2 + 9x – 4 = 0

3x2 + 9x = 4

a(x2 + 3x) = 4

what is the value of a?

12 point are triangles pqr and stu congruent? what is the congruency that proves they are congruent? what is the perimeter of triangle pqr?

How many zeros does the function f(x)=4x3-x2+1 have

Suppose that an airline uses a seat width of 16.516.5 in. assume men have hip breadths that are normally distributed with a mean of 14.414.4 in. and a standard deviation of 0.90.9 in. complete parts (a) through (c) below. (a) find the probability that if an individual man is randomly selected, his hip breadth will be greater than 16.516.5 in. the probability is nothing. (round to four decimal places as needed.)