Answer:
His average speed was of 10.42 m/s
Step-by-step explanation:
We use the following relation to solve this question:
In which v is the velocity(in m/s), d is the distance(in meters), and t is the time, in seconds.
Usain Bolt of Jamaica set a world record in 2009 for the 200- meter dash with a time of 19.19 seconds.
This means that 
So his average speed was of:
His average speed was of 10.42 m/s
No, we can only suppose that the observed distribution deviates from the expected distribution when we reject the null hypothesis.
<h3>What is a null hypothesis?</h3>
The null hypothesis exists as a specific mathematical theory that claims that there exists no statistical relationship and significance between two sets of observed data and estimated phenomena for each set of selected, single observable variables. The null hypothesis can be estimated to define whether or not there exists a relationship between two measured phenomena, which creates it useful. It can let the user comprehend if the outcomes exist as the product of random events or intentional manipulation of a phenomenon.
To learn more about the null hypothesis refer to:
brainly.com/question/13135308
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sales must he make in a week for both plans to result in the same salary be = 500+ 0.02x.
<h3>What is inequality?</h3>
A statement of an order relationship—greater than, greater than or equal to, less than, or less than or equal to—between two numbers or algebraic expressions.
Given:
plan 1 is a weekly salary of $500 plus 2% commission of sales.
plan 2 is a straight commission of 6% of sales.
So, sales must he make in a week for both plans to result in the same salary be = 500+ 0.02x.
Learn more about this concept here:
brainly.com/question/196530
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Answer:
idk how to answer this but i would say a is going the fastest bc it could be first?
Answer:
The answer is going to be positive
