Answer:
no it doesnt a Proportional relationships are relationships between two variables where their ratios are equivalent. Another way to think about them is that, in a proportional relationship, one variable is always a constant value times the other. . so this is not one because its needs to be straight that is a Non linear function.
Step-by-step explanation:
Answer:
Step-by-step explanation:
3x + y = 7
-2x - y = 9
x = 16
answer is B
3(16) + y = 7
48 + y = 7
y = -41
Answer:19
Step-by-step explanation:
7x3=21
21-2=19
Answer:

Step-by-step explanation:
For this question, set u = arctan(x). This would be the easiest way because the derivative of arctan(x) is
which is what we have. Before setting u, always look at the question and think about possible derivatives.

Next, plug in u and du.
(rearranging)


Substitute arctan(x) back in for u and add +C.

Coefficient of variation, CV. for Data set A is
% and for Data set B is
%
Sample A:
Mean
, Standard deviation
.
C.V
Sample B:
Mean
, Standard deviation
.
C.V
In terms of percentage, C.V for sample A is
% and for sample B is
%
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