Answer:
A
Step-by-step explanation:
For a graph to be representative of a proportional relationship, it must meet the following criteria:
1) It is a straight line.
2) It passes through the origin point (0,0).
3) It is neither horizontal nor vertical*.
We can see that D is not a line. So, D is not a proportional relationship.
We can also see that B and C are vertical and horizontal, respectively. They also do not cross the origin.
The only choice that is a straight line and also crosses through the origin point is A.
So, our answer is A.
And we're done!
*Note: Vertical lines are not proportional because they are not a function.
Horizontal lines are not proportional because they has a constant of proportionality of 0, which can't be the case.
The Angles (3x - 3)° and 60° forms alternate interior Angle pair. hence,
Mean of older groups = 16
Mean of younger groups = 14
If you tested two age groups on the number of details, Further suppose that you fail to reject the null hypothesis for this independent samples t-test.
the difference between these sample means,
As we fail to reject the null hypothesis, the sample means probably came from the same population, and the difference is just due to sampling error.
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DENSITY = MASS/VOLUME:
OR VOLUME = MASS/DENSITY:
Volume = 315/10.5 = 30 cm³