Using chain rule, the value of for the following function is given by: du
z
z=x+2y6 - 4x, x=u?v, y=v-3u, u=1, v=1,

Diane owes $387 to her brother. if she debits her bank account $161.25 a month to pay him back, how many months will it take her to pay off the debt?

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent ?

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (–4, 0) and (6, 0). the y-intercept of the first parabola is (0, –12). the y-intercept of the second parabola is (0, –24). what is the positive difference between the a values for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth