√81 =9
it is an odd, whole, rational number.
Answer:
A) y = x^2/144
Step-by-step explanation:
EDGE 2021
Answer: A. H0: Mean= 5 and Ha: Mean is not equal to 5.
Step-by-step explanation:
Definitions:
- Null hypothesis
is a statement describing population parameters according to the objective of the study. It takes "≤,≥,=" signs.
- Alternative hypothesis
is a statement opposite to the null hypothesis elaborating population parameters according to the objective of the study. It takes ">, <, ≠" signs.
Given: The diameter of a spindle in a small motor is supposed to be 5.8 millimeters.
If the spindle is either too small or too large, the motor will not work properly. so, Mean diameter ≠ 5.8 to work correctly.
i.e. ![H_a: \text{Mean}\neq 5.8](https://tex.z-dn.net/?f=H_a%3A%20%5Ctext%7BMean%7D%5Cneq%205.8)
So, ![H_a: \text{Mean =5.8}](https://tex.z-dn.net/?f=H_a%3A%20%5Ctext%7BMean%20%3D5.8%7D)
The required null and alternative hypotheses:
H0: Mean= 5 and Ha: Mean is not equal to 5.
Answer: No, it is not a direct variation
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Explanation:
The given equation solves to y = x-3, which is not in the form y = kx. So the original equation is not a direct variation.
An example of a direct variation would be y = 5x, where in this case, k = 5.
Visually, all direct variation equation graphs go through the origin.
Answer:
This team can lose 6 games and still achieve this goal.
Step-by-step explanation:
In order to find this, we can create a proportion and solve by cross multiplying. The proportion should compare amount of losses to total games.
Ratio = Total
2/5 = x/15
Now cross multiply
15*2 = 5x
30 = 5x
6 = x
This means the team can lose 6 games and still keep the necessary ratio.