Substitute x = -2 in the equation
y = 2/3x + 3
y = (2/3 x 2) + 3
y = 13/3
answer is choice D
<span>r^-3s^5t^2/r^2st^-2
= r^-5 s^4 t^4
= s^4 t^4 /r^5</span>
The boat travels 20m in 18 sec. it has an average velocity of 20/18 m/s = +1.11 m/s
a. The marginal densities

and

b. This can be obtained by integrating the joint density over [0.25, 1] x [0.5, 1]:
