Answer:

Step-by-step explanation:
4-8 = -4
Thus, the answer is - 4/3
5z^2 + 16
a coefficient is a number multiplied by a variable (a letter). so there is only ONE coefficient in this expression and it is 5.
Answer:
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
Above, I changed the fraction form of x and y into exponential form so it is easier to see the differentiation. Now, we can differentiate:

Now that we have dy/dx, we can plug in the x, which is 4, and the y, which is 4/19. We know these values of x and y because your question stated y(4) = 4/19.
Answer:
The relationship between two variables is called their correlation The relationship between two variables is called their correlation
Step-by-step explanation: